Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011, Google Inc. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above |
| 11 | * copyright notice, this list of conditions and the following disclaimer |
| 12 | * in the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google Inc. nor the names of its |
| 15 | * contributors may be used to endorse or promote products derived from |
| 16 | * this software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 30 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 31 | #include "config.h" |
| 32 | #include "PopupListBox.h" |
| 33 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 34 | #include "CSSValueKeywords.h" |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 35 | #include "PopupContainer.h" |
| 36 | #include "PopupMenuChromium.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 37 | #include "RuntimeEnabledFeatures.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 38 | #include "core/rendering/RenderTheme.h" |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 39 | #include "platform/KeyboardCodes.h" |
Torne (Richard Coles) | 1e20218 | 2013-10-18 15:46:42 +0100 | [diff] [blame] | 40 | #include "platform/PlatformGestureEvent.h" |
| 41 | #include "platform/PlatformKeyboardEvent.h" |
| 42 | #include "platform/PlatformMouseEvent.h" |
Torne (Richard Coles) | bfe3590 | 2013-10-22 16:41:51 +0100 | [diff] [blame] | 43 | #include "platform/PlatformScreen.h" |
Torne (Richard Coles) | 1e20218 | 2013-10-18 15:46:42 +0100 | [diff] [blame] | 44 | #include "platform/PlatformTouchEvent.h" |
| 45 | #include "platform/PlatformWheelEvent.h" |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 46 | #include "platform/PopupMenuClient.h" |
Torne (Richard Coles) | a854de0 | 2013-12-18 16:25:25 +0000 | [diff] [blame] | 47 | #include "platform/fonts/Font.h" |
| 48 | #include "platform/fonts/FontCache.h" |
Torne (Richard Coles) | f79f16f | 2013-10-31 11:16:44 +0000 | [diff] [blame] | 49 | #include "platform/fonts/FontSelector.h" |
Torne (Richard Coles) | 1e20218 | 2013-10-18 15:46:42 +0100 | [diff] [blame] | 50 | #include "platform/geometry/IntRect.h" |
Torne (Richard Coles) | a854de0 | 2013-12-18 16:25:25 +0000 | [diff] [blame] | 51 | #include "platform/graphics/GraphicsContext.h" |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 52 | #include "platform/scroll/FramelessScrollViewClient.h" |
Torne (Richard Coles) | a854de0 | 2013-12-18 16:25:25 +0000 | [diff] [blame] | 53 | #include "platform/scroll/ScrollbarTheme.h" |
| 54 | #include "platform/text/StringTruncator.h" |
| 55 | #include "platform/text/TextRun.h" |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 56 | #include "wtf/ASCIICType.h" |
| 57 | #include "wtf/CurrentTime.h" |
| 58 | #include <limits> |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 59 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 60 | namespace blink { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 61 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 62 | using namespace WTF::Unicode; |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 63 | using namespace WebCore; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 64 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 65 | const int PopupListBox::defaultMaxHeight = 500; |
| 66 | static const int maxVisibleRows = 20; |
| 67 | static const int minEndOfLinePadding = 2; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 68 | static const TimeStamp typeAheadTimeoutMs = 1000; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 69 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 70 | PopupListBox::PopupListBox(PopupMenuClient* client, bool deviceSupportsTouch) |
| 71 | : m_deviceSupportsTouch(deviceSupportsTouch) |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 72 | , m_originalIndex(0) |
| 73 | , m_selectedIndex(0) |
| 74 | , m_acceptedIndexOnAbandon(-1) |
| 75 | , m_visibleRows(0) |
| 76 | , m_baseWidth(0) |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 77 | , m_maxHeight(defaultMaxHeight) |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 78 | , m_popupClient(client) |
| 79 | , m_repeatingChar(0) |
| 80 | , m_lastCharTime(0) |
| 81 | , m_maxWindowWidth(std::numeric_limits<int>::max()) |
| 82 | { |
| 83 | setScrollbarModes(ScrollbarAlwaysOff, ScrollbarAlwaysOff); |
| 84 | } |
| 85 | |
| 86 | bool PopupListBox::handleMouseDownEvent(const PlatformMouseEvent& event) |
| 87 | { |
| 88 | Scrollbar* scrollbar = scrollbarAtPoint(event.position()); |
| 89 | if (scrollbar) { |
| 90 | m_capturingScrollbar = scrollbar; |
| 91 | m_capturingScrollbar->mouseDown(event); |
| 92 | return true; |
| 93 | } |
| 94 | |
| 95 | if (!isPointInBounds(event.position())) |
| 96 | abandon(); |
| 97 | |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | bool PopupListBox::handleMouseMoveEvent(const PlatformMouseEvent& event) |
| 102 | { |
| 103 | if (m_capturingScrollbar) { |
| 104 | m_capturingScrollbar->mouseMoved(event); |
| 105 | return true; |
| 106 | } |
| 107 | |
| 108 | Scrollbar* scrollbar = scrollbarAtPoint(event.position()); |
| 109 | if (m_lastScrollbarUnderMouse != scrollbar) { |
| 110 | // Send mouse exited to the old scrollbar. |
| 111 | if (m_lastScrollbarUnderMouse) |
| 112 | m_lastScrollbarUnderMouse->mouseExited(); |
| 113 | m_lastScrollbarUnderMouse = scrollbar; |
| 114 | } |
| 115 | |
| 116 | if (scrollbar) { |
| 117 | scrollbar->mouseMoved(event); |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | if (!isPointInBounds(event.position())) |
| 122 | return false; |
| 123 | |
| 124 | selectIndex(pointToRowIndex(event.position())); |
| 125 | return true; |
| 126 | } |
| 127 | |
| 128 | bool PopupListBox::handleMouseReleaseEvent(const PlatformMouseEvent& event) |
| 129 | { |
| 130 | if (m_capturingScrollbar) { |
| 131 | m_capturingScrollbar->mouseUp(event); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 132 | m_capturingScrollbar = nullptr; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 133 | return true; |
| 134 | } |
| 135 | |
| 136 | if (!isPointInBounds(event.position())) |
| 137 | return true; |
| 138 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 139 | if (acceptIndex(pointToRowIndex(event.position())) && m_focusedElement) { |
Torne (Richard Coles) | 1e20218 | 2013-10-18 15:46:42 +0100 | [diff] [blame] | 140 | m_focusedElement->dispatchMouseEvent(event, EventTypeNames::mouseup); |
| 141 | m_focusedElement->dispatchMouseEvent(event, EventTypeNames::click); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 142 | |
Ben Murdoch | 7757ec2 | 2013-07-23 11:17:36 +0100 | [diff] [blame] | 143 | // Clear m_focusedElement here, because we cannot clear in hidePopup() |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 144 | // which is called before dispatchMouseEvent() is called. |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 145 | m_focusedElement = nullptr; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | return true; |
| 149 | } |
| 150 | |
| 151 | bool PopupListBox::handleWheelEvent(const PlatformWheelEvent& event) |
| 152 | { |
| 153 | if (!isPointInBounds(event.position())) { |
| 154 | abandon(); |
| 155 | return true; |
| 156 | } |
| 157 | |
| 158 | ScrollableArea::handleWheelEvent(event); |
| 159 | return true; |
| 160 | } |
| 161 | |
| 162 | // Should be kept in sync with handleKeyEvent(). |
| 163 | bool PopupListBox::isInterestedInEventForKey(int keyCode) |
| 164 | { |
| 165 | switch (keyCode) { |
| 166 | case VKEY_ESCAPE: |
| 167 | case VKEY_RETURN: |
| 168 | case VKEY_UP: |
| 169 | case VKEY_DOWN: |
| 170 | case VKEY_PRIOR: |
| 171 | case VKEY_NEXT: |
| 172 | case VKEY_HOME: |
| 173 | case VKEY_END: |
| 174 | case VKEY_TAB: |
| 175 | return true; |
| 176 | default: |
| 177 | return false; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | bool PopupListBox::handleTouchEvent(const PlatformTouchEvent&) |
| 182 | { |
| 183 | return false; |
| 184 | } |
| 185 | |
| 186 | bool PopupListBox::handleGestureEvent(const PlatformGestureEvent&) |
| 187 | { |
| 188 | return false; |
| 189 | } |
| 190 | |
| 191 | static bool isCharacterTypeEvent(const PlatformKeyboardEvent& event) |
| 192 | { |
| 193 | // Check whether the event is a character-typed event or not. |
| 194 | // We use RawKeyDown/Char/KeyUp event scheme on all platforms, |
| 195 | // so PlatformKeyboardEvent::Char (not RawKeyDown) type event |
| 196 | // is considered as character type event. |
| 197 | return event.type() == PlatformEvent::Char; |
| 198 | } |
| 199 | |
| 200 | bool PopupListBox::handleKeyEvent(const PlatformKeyboardEvent& event) |
| 201 | { |
| 202 | if (event.type() == PlatformEvent::KeyUp) |
| 203 | return true; |
| 204 | |
| 205 | if (!numItems() && event.windowsVirtualKeyCode() != VKEY_ESCAPE) |
| 206 | return true; |
| 207 | |
| 208 | switch (event.windowsVirtualKeyCode()) { |
| 209 | case VKEY_ESCAPE: |
| 210 | abandon(); // may delete this |
| 211 | return true; |
| 212 | case VKEY_RETURN: |
| 213 | if (m_selectedIndex == -1) { |
| 214 | hidePopup(); |
| 215 | // Don't eat the enter if nothing is selected. |
| 216 | return false; |
| 217 | } |
| 218 | acceptIndex(m_selectedIndex); // may delete this |
| 219 | return true; |
| 220 | case VKEY_UP: |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 221 | selectPreviousRow(); |
| 222 | break; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 223 | case VKEY_DOWN: |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 224 | selectNextRow(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 225 | break; |
| 226 | case VKEY_PRIOR: |
| 227 | adjustSelectedIndex(-m_visibleRows); |
| 228 | break; |
| 229 | case VKEY_NEXT: |
| 230 | adjustSelectedIndex(m_visibleRows); |
| 231 | break; |
| 232 | case VKEY_HOME: |
| 233 | adjustSelectedIndex(-m_selectedIndex); |
| 234 | break; |
| 235 | case VKEY_END: |
| 236 | adjustSelectedIndex(m_items.size()); |
| 237 | break; |
| 238 | default: |
| 239 | if (!event.ctrlKey() && !event.altKey() && !event.metaKey() |
| 240 | && isPrintableChar(event.windowsVirtualKeyCode()) |
| 241 | && isCharacterTypeEvent(event)) |
| 242 | typeAheadFind(event); |
| 243 | break; |
| 244 | } |
| 245 | |
| 246 | if (m_originalIndex != m_selectedIndex) { |
| 247 | // Keyboard events should update the selection immediately (but we don't |
| 248 | // want to fire the onchange event until the popup is closed, to match |
| 249 | // IE). We change the original index so we revert to that when the |
| 250 | // popup is closed. |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 251 | m_acceptedIndexOnAbandon = m_selectedIndex; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 252 | |
| 253 | setOriginalIndex(m_selectedIndex); |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 254 | m_popupClient->setTextFromItem(m_selectedIndex); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 255 | } |
| 256 | if (event.windowsVirtualKeyCode() == VKEY_TAB) { |
| 257 | // TAB is a special case as it should select the current item if any and |
| 258 | // advance focus. |
| 259 | if (m_selectedIndex >= 0) { |
| 260 | acceptIndex(m_selectedIndex); // May delete us. |
| 261 | // Return false so the TAB key event is propagated to the page. |
| 262 | return false; |
| 263 | } |
| 264 | // Call abandon() so we honor m_acceptedIndexOnAbandon if set. |
| 265 | abandon(); |
| 266 | // Return false so the TAB key event is propagated to the page. |
| 267 | return false; |
| 268 | } |
| 269 | |
| 270 | return true; |
| 271 | } |
| 272 | |
| 273 | HostWindow* PopupListBox::hostWindow() const |
| 274 | { |
| 275 | // Our parent is the root ScrollView, so it is the one that has a |
| 276 | // HostWindow. FrameView::hostWindow() works similarly. |
| 277 | return parent() ? parent()->hostWindow() : 0; |
| 278 | } |
| 279 | |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 280 | bool PopupListBox::shouldPlaceVerticalScrollbarOnLeft() const |
| 281 | { |
| 282 | return m_popupClient->menuStyle().textDirection() == RTL; |
| 283 | } |
| 284 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 285 | // From HTMLSelectElement.cpp |
| 286 | static String stripLeadingWhiteSpace(const String& string) |
| 287 | { |
| 288 | int length = string.length(); |
| 289 | int i; |
| 290 | for (i = 0; i < length; ++i) |
| 291 | if (string[i] != noBreakSpace |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 292 | && !isSpaceOrNewline(string[i])) |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 293 | break; |
| 294 | |
| 295 | return string.substring(i, length - i); |
| 296 | } |
| 297 | |
| 298 | // From HTMLSelectElement.cpp, with modifications |
| 299 | void PopupListBox::typeAheadFind(const PlatformKeyboardEvent& event) |
| 300 | { |
| 301 | TimeStamp now = static_cast<TimeStamp>(currentTime() * 1000.0f); |
| 302 | TimeStamp delta = now - m_lastCharTime; |
| 303 | |
| 304 | // Reset the time when user types in a character. The time gap between |
| 305 | // last character and the current character is used to indicate whether |
| 306 | // user typed in a string or just a character as the search prefix. |
| 307 | m_lastCharTime = now; |
| 308 | |
| 309 | UChar c = event.windowsVirtualKeyCode(); |
| 310 | |
| 311 | String prefix; |
| 312 | int searchStartOffset = 1; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 313 | if (delta > typeAheadTimeoutMs) { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 314 | m_typedString = prefix = String(&c, 1); |
| 315 | m_repeatingChar = c; |
| 316 | } else { |
| 317 | m_typedString.append(c); |
| 318 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 319 | if (c == m_repeatingChar) { |
| 320 | // The user is likely trying to cycle through all the items starting |
| 321 | // with this character, so just search on the character. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 322 | prefix = String(&c, 1); |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 323 | } else { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 324 | m_repeatingChar = 0; |
| 325 | prefix = m_typedString; |
| 326 | searchStartOffset = 0; |
| 327 | } |
| 328 | } |
| 329 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 330 | // Compute a case-folded copy of the prefix string before beginning the |
| 331 | // search for a matching element. This code uses foldCase to work around the |
| 332 | // fact that String::startWith does not fold non-ASCII characters. This code |
| 333 | // can be changed to use startWith once that is fixed. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 334 | String prefixWithCaseFolded(prefix.foldCase()); |
| 335 | int itemCount = numItems(); |
| 336 | int index = (max(0, m_selectedIndex) + searchStartOffset) % itemCount; |
| 337 | for (int i = 0; i < itemCount; i++, index = (index + 1) % itemCount) { |
| 338 | if (!isSelectableItem(index)) |
| 339 | continue; |
| 340 | |
| 341 | if (stripLeadingWhiteSpace(m_items[index]->label).foldCase().startsWith(prefixWithCaseFolded)) { |
| 342 | selectIndex(index); |
| 343 | return; |
| 344 | } |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | void PopupListBox::paint(GraphicsContext* gc, const IntRect& rect) |
| 349 | { |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 350 | // Adjust coords for scrolled frame. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 351 | IntRect r = intersection(rect, frameRect()); |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 352 | int tx = x() - scrollX() + ((shouldPlaceVerticalScrollbarOnLeft() && verticalScrollbar()) ? verticalScrollbar()->width() : 0); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 353 | int ty = y() - scrollY(); |
| 354 | |
| 355 | r.move(-tx, -ty); |
| 356 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 357 | // Set clip rect to match revised damage rect. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 358 | gc->save(); |
| 359 | gc->translate(static_cast<float>(tx), static_cast<float>(ty)); |
| 360 | gc->clip(r); |
| 361 | |
| 362 | // FIXME: Can we optimize scrolling to not require repainting the entire |
| 363 | // window? Should we? |
| 364 | for (int i = 0; i < numItems(); ++i) |
| 365 | paintRow(gc, r, i); |
| 366 | |
| 367 | // Special case for an empty popup. |
| 368 | if (!numItems()) |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 369 | gc->fillRect(r, Color::white); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 370 | |
| 371 | gc->restore(); |
| 372 | |
| 373 | ScrollView::paint(gc, rect); |
| 374 | } |
| 375 | |
| 376 | static const int separatorPadding = 4; |
| 377 | static const int separatorHeight = 1; |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 378 | static const int minRowHeight = 0; |
| 379 | static const int optionRowHeightForTouch = 28; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 380 | |
| 381 | void PopupListBox::paintRow(GraphicsContext* gc, const IntRect& rect, int rowIndex) |
| 382 | { |
| 383 | // This code is based largely on RenderListBox::paint* methods. |
| 384 | |
| 385 | IntRect rowRect = getRowBounds(rowIndex); |
| 386 | if (!rowRect.intersects(rect)) |
| 387 | return; |
| 388 | |
| 389 | PopupMenuStyle style = m_popupClient->itemStyle(rowIndex); |
| 390 | |
| 391 | // Paint background |
| 392 | Color backColor, textColor, labelColor; |
| 393 | if (rowIndex == m_selectedIndex) { |
Torne (Richard Coles) | c0e19a6 | 2013-08-30 15:15:11 +0100 | [diff] [blame] | 394 | backColor = RenderTheme::theme().activeListBoxSelectionBackgroundColor(); |
| 395 | textColor = RenderTheme::theme().activeListBoxSelectionForegroundColor(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 396 | labelColor = textColor; |
| 397 | } else { |
| 398 | backColor = style.backgroundColor(); |
| 399 | textColor = style.foregroundColor(); |
| 400 | |
Torne (Richard Coles) | 1e20218 | 2013-10-18 15:46:42 +0100 | [diff] [blame] | 401 | #if OS(LINUX) || OS(ANDROID) |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 402 | // On other platforms, the <option> background color is the same as the |
| 403 | // <select> background color. On Linux, that makes the <option> |
| 404 | // background color very dark, so by default, try to use a lighter |
| 405 | // background color for <option>s. |
Torne (Richard Coles) | c0e19a6 | 2013-08-30 15:15:11 +0100 | [diff] [blame] | 406 | if (style.backgroundColorType() == PopupMenuStyle::DefaultBackgroundColor && RenderTheme::theme().systemColor(CSSValueButtonface) == backColor) |
| 407 | backColor = RenderTheme::theme().systemColor(CSSValueMenu); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 408 | #endif |
| 409 | |
| 410 | // FIXME: for now the label color is hard-coded. It should be added to |
| 411 | // the PopupMenuStyle. |
| 412 | labelColor = Color(115, 115, 115); |
| 413 | } |
| 414 | |
| 415 | // If we have a transparent background, make sure it has a color to blend |
| 416 | // against. |
| 417 | if (backColor.hasAlpha()) |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 418 | gc->fillRect(rowRect, Color::white); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 419 | |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 420 | gc->fillRect(rowRect, backColor); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 421 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 422 | if (m_popupClient->itemIsSeparator(rowIndex)) { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 423 | IntRect separatorRect( |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 424 | rowRect.x() + separatorPadding, |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 425 | rowRect.y() + (rowRect.height() - separatorHeight) / 2, |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 426 | rowRect.width() - 2 * separatorPadding, separatorHeight); |
| 427 | gc->fillRect(separatorRect, textColor); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 428 | return; |
| 429 | } |
| 430 | |
| 431 | if (!style.isVisible()) |
| 432 | return; |
| 433 | |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 434 | gc->setFillColor(textColor); |
| 435 | |
| 436 | FontCachePurgePreventer fontCachePurgePreventer; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 437 | |
| 438 | Font itemFont = getRowFont(rowIndex); |
| 439 | // FIXME: http://crbug.com/19872 We should get the padding of individual option |
| 440 | // elements. This probably implies changes to PopupMenuClient. |
| 441 | bool rightAligned = m_popupClient->menuStyle().textDirection() == RTL; |
| 442 | int textX = 0; |
| 443 | int maxWidth = 0; |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 444 | if (rightAligned) { |
| 445 | maxWidth = rowRect.width() - max<int>(0, m_popupClient->clientPaddingRight()); |
| 446 | } else { |
| 447 | textX = max<int>(0, m_popupClient->clientPaddingLeft()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 448 | maxWidth = rowRect.width() - textX; |
| 449 | } |
| 450 | // Prepare text to be drawn. |
| 451 | String itemText = m_popupClient->itemText(rowIndex); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 452 | |
| 453 | // Prepare the directionality to draw text. |
| 454 | TextRun textRun(itemText, 0, 0, TextRun::AllowTrailingExpansion, style.textDirection(), style.hasTextDirectionOverride()); |
| 455 | // If the text is right-to-left, make it right-aligned by adjusting its |
| 456 | // beginning position. |
| 457 | if (rightAligned) |
| 458 | textX += maxWidth - itemFont.width(textRun); |
| 459 | |
| 460 | // Draw the item text. |
| 461 | int textY = rowRect.y() + itemFont.fontMetrics().ascent() + (rowRect.height() - itemFont.fontMetrics().height()) / 2; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 462 | TextRunPaintInfo textRunPaintInfo(textRun); |
| 463 | textRunPaintInfo.bounds = rowRect; |
| 464 | gc->drawBidiText(itemFont, textRunPaintInfo, IntPoint(textX, textY)); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | Font PopupListBox::getRowFont(int rowIndex) |
| 468 | { |
| 469 | Font itemFont = m_popupClient->itemStyle(rowIndex).font(); |
| 470 | if (m_popupClient->itemIsLabel(rowIndex)) { |
| 471 | // Bold-ify labels (ie, an <optgroup> heading). |
| 472 | FontDescription d = itemFont.fontDescription(); |
| 473 | d.setWeight(FontWeightBold); |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 474 | Font font(d); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 475 | font.update(nullptr); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 476 | return font; |
| 477 | } |
| 478 | |
| 479 | return itemFont; |
| 480 | } |
| 481 | |
| 482 | void PopupListBox::abandon() |
| 483 | { |
| 484 | RefPtr<PopupListBox> keepAlive(this); |
| 485 | |
| 486 | m_selectedIndex = m_originalIndex; |
| 487 | |
| 488 | hidePopup(); |
| 489 | |
| 490 | if (m_acceptedIndexOnAbandon >= 0) { |
| 491 | if (m_popupClient) |
| 492 | m_popupClient->valueChanged(m_acceptedIndexOnAbandon); |
| 493 | m_acceptedIndexOnAbandon = -1; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | int PopupListBox::pointToRowIndex(const IntPoint& point) |
| 498 | { |
| 499 | int y = scrollY() + point.y(); |
| 500 | |
| 501 | // FIXME: binary search if perf matters. |
| 502 | for (int i = 0; i < numItems(); ++i) { |
| 503 | if (y < m_items[i]->yOffset) |
| 504 | return i-1; |
| 505 | } |
| 506 | |
| 507 | // Last item? |
| 508 | if (y < contentsHeight()) |
| 509 | return m_items.size()-1; |
| 510 | |
| 511 | return -1; |
| 512 | } |
| 513 | |
| 514 | bool PopupListBox::acceptIndex(int index) |
| 515 | { |
| 516 | // Clear m_acceptedIndexOnAbandon once user accepts the selected index. |
| 517 | if (m_acceptedIndexOnAbandon >= 0) |
| 518 | m_acceptedIndexOnAbandon = -1; |
| 519 | |
| 520 | if (index >= numItems()) |
| 521 | return false; |
| 522 | |
| 523 | if (index < 0) { |
| 524 | if (m_popupClient) { |
| 525 | // Enter pressed with no selection, just close the popup. |
| 526 | hidePopup(); |
| 527 | } |
| 528 | return false; |
| 529 | } |
| 530 | |
| 531 | if (isSelectableItem(index)) { |
| 532 | RefPtr<PopupListBox> keepAlive(this); |
| 533 | |
| 534 | // Hide ourselves first since valueChanged may have numerous side-effects. |
| 535 | hidePopup(); |
| 536 | |
| 537 | // Tell the <select> PopupMenuClient what index was selected. |
| 538 | m_popupClient->valueChanged(index); |
| 539 | |
| 540 | return true; |
| 541 | } |
| 542 | |
| 543 | return false; |
| 544 | } |
| 545 | |
| 546 | void PopupListBox::selectIndex(int index) |
| 547 | { |
| 548 | if (index < 0 || index >= numItems()) |
| 549 | return; |
| 550 | |
| 551 | bool isSelectable = isSelectableItem(index); |
| 552 | if (index != m_selectedIndex && isSelectable) { |
| 553 | invalidateRow(m_selectedIndex); |
| 554 | m_selectedIndex = index; |
| 555 | invalidateRow(m_selectedIndex); |
| 556 | |
| 557 | scrollToRevealSelection(); |
| 558 | m_popupClient->selectionChanged(m_selectedIndex); |
| 559 | } else if (!isSelectable) |
| 560 | clearSelection(); |
| 561 | } |
| 562 | |
| 563 | void PopupListBox::setOriginalIndex(int index) |
| 564 | { |
| 565 | m_originalIndex = m_selectedIndex = index; |
| 566 | } |
| 567 | |
| 568 | int PopupListBox::getRowHeight(int index) |
| 569 | { |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 570 | int minimumHeight = m_deviceSupportsTouch ? optionRowHeightForTouch : minRowHeight; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 571 | |
| 572 | if (index < 0 || m_popupClient->itemStyle(index).isDisplayNone()) |
| 573 | return minimumHeight; |
| 574 | |
| 575 | // Separator row height is the same size as itself. |
| 576 | if (m_popupClient->itemIsSeparator(index)) |
| 577 | return max(separatorHeight, minimumHeight); |
| 578 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 579 | int fontHeight = getRowFont(index).fontMetrics().height(); |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 580 | return max(fontHeight, minimumHeight); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | IntRect PopupListBox::getRowBounds(int index) |
| 584 | { |
| 585 | if (index < 0) |
| 586 | return IntRect(0, 0, visibleWidth(), getRowHeight(index)); |
| 587 | |
| 588 | return IntRect(0, m_items[index]->yOffset, visibleWidth(), getRowHeight(index)); |
| 589 | } |
| 590 | |
| 591 | void PopupListBox::invalidateRow(int index) |
| 592 | { |
| 593 | if (index < 0) |
| 594 | return; |
| 595 | |
| 596 | // Invalidate in the window contents, as FramelessScrollView::invalidateRect |
| 597 | // paints in the window coordinates. |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 598 | IntRect clipRect = contentsToWindow(getRowBounds(index)); |
| 599 | if (shouldPlaceVerticalScrollbarOnLeft() && verticalScrollbar()) |
| 600 | clipRect.move(verticalScrollbar()->width(), 0); |
| 601 | invalidateRect(clipRect); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | void PopupListBox::scrollToRevealRow(int index) |
| 605 | { |
| 606 | if (index < 0) |
| 607 | return; |
| 608 | |
| 609 | IntRect rowRect = getRowBounds(index); |
| 610 | |
| 611 | if (rowRect.y() < scrollY()) { |
| 612 | // Row is above current scroll position, scroll up. |
| 613 | ScrollView::setScrollPosition(IntPoint(0, rowRect.y())); |
| 614 | } else if (rowRect.maxY() > scrollY() + visibleHeight()) { |
| 615 | // Row is below current scroll position, scroll down. |
| 616 | ScrollView::setScrollPosition(IntPoint(0, rowRect.maxY() - visibleHeight())); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | bool PopupListBox::isSelectableItem(int index) |
| 621 | { |
| 622 | ASSERT(index >= 0 && index < numItems()); |
| 623 | return m_items[index]->type == PopupItem::TypeOption && m_popupClient->itemIsEnabled(index); |
| 624 | } |
| 625 | |
| 626 | void PopupListBox::clearSelection() |
| 627 | { |
| 628 | if (m_selectedIndex != -1) { |
| 629 | invalidateRow(m_selectedIndex); |
| 630 | m_selectedIndex = -1; |
| 631 | m_popupClient->selectionCleared(); |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | void PopupListBox::selectNextRow() |
| 636 | { |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 637 | adjustSelectedIndex(1); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | void PopupListBox::selectPreviousRow() |
| 641 | { |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 642 | adjustSelectedIndex(-1); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 643 | } |
| 644 | |
| 645 | void PopupListBox::adjustSelectedIndex(int delta) |
| 646 | { |
| 647 | int targetIndex = m_selectedIndex + delta; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 648 | targetIndex = std::min(std::max(targetIndex, 0), numItems() - 1); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 649 | if (!isSelectableItem(targetIndex)) { |
| 650 | // We didn't land on an option. Try to find one. |
| 651 | // We try to select the closest index to target, prioritizing any in |
| 652 | // the range [current, target]. |
| 653 | |
| 654 | int dir = delta > 0 ? 1 : -1; |
| 655 | int testIndex = m_selectedIndex; |
| 656 | int bestIndex = m_selectedIndex; |
| 657 | bool passedTarget = false; |
| 658 | while (testIndex >= 0 && testIndex < numItems()) { |
| 659 | if (isSelectableItem(testIndex)) |
| 660 | bestIndex = testIndex; |
| 661 | if (testIndex == targetIndex) |
| 662 | passedTarget = true; |
| 663 | if (passedTarget && bestIndex != m_selectedIndex) |
| 664 | break; |
| 665 | |
| 666 | testIndex += dir; |
| 667 | } |
| 668 | |
| 669 | // Pick the best index, which may mean we don't change. |
| 670 | targetIndex = bestIndex; |
| 671 | } |
| 672 | |
| 673 | // Select the new index, and ensure its visible. We do this regardless of |
| 674 | // whether the selection changed to ensure keyboard events always bring the |
| 675 | // selection into view. |
| 676 | selectIndex(targetIndex); |
| 677 | scrollToRevealSelection(); |
| 678 | } |
| 679 | |
| 680 | void PopupListBox::hidePopup() |
| 681 | { |
| 682 | if (parent()) { |
| 683 | PopupContainer* container = static_cast<PopupContainer*>(parent()); |
| 684 | if (container->client()) |
| 685 | container->client()->popupClosed(container); |
| 686 | container->notifyPopupHidden(); |
| 687 | } |
| 688 | |
| 689 | if (m_popupClient) |
| 690 | m_popupClient->popupDidHide(); |
| 691 | } |
| 692 | |
| 693 | void PopupListBox::updateFromElement() |
| 694 | { |
| 695 | clear(); |
| 696 | |
| 697 | int size = m_popupClient->listSize(); |
| 698 | for (int i = 0; i < size; ++i) { |
| 699 | PopupItem::Type type; |
| 700 | if (m_popupClient->itemIsSeparator(i)) |
| 701 | type = PopupItem::TypeSeparator; |
| 702 | else if (m_popupClient->itemIsLabel(i)) |
| 703 | type = PopupItem::TypeGroup; |
| 704 | else |
| 705 | type = PopupItem::TypeOption; |
| 706 | m_items.append(new PopupItem(m_popupClient->itemText(i), type)); |
| 707 | m_items[i]->enabled = isSelectableItem(i); |
| 708 | PopupMenuStyle style = m_popupClient->itemStyle(i); |
| 709 | m_items[i]->textDirection = style.textDirection(); |
| 710 | m_items[i]->hasTextDirectionOverride = style.hasTextDirectionOverride(); |
| 711 | } |
| 712 | |
| 713 | m_selectedIndex = m_popupClient->selectedIndex(); |
| 714 | setOriginalIndex(m_selectedIndex); |
| 715 | |
| 716 | layout(); |
| 717 | } |
| 718 | |
| 719 | void PopupListBox::setMaxWidthAndLayout(int maxWidth) |
| 720 | { |
| 721 | m_maxWindowWidth = maxWidth; |
| 722 | layout(); |
| 723 | } |
| 724 | |
| 725 | void PopupListBox::layout() |
| 726 | { |
| 727 | bool isRightAligned = m_popupClient->menuStyle().textDirection() == RTL; |
| 728 | |
| 729 | // Size our child items. |
| 730 | int baseWidth = 0; |
| 731 | int paddingWidth = 0; |
| 732 | int lineEndPaddingWidth = 0; |
| 733 | int y = 0; |
| 734 | for (int i = 0; i < numItems(); ++i) { |
| 735 | // Place the item vertically. |
| 736 | m_items[i]->yOffset = y; |
| 737 | if (m_popupClient->itemStyle(i).isDisplayNone()) |
| 738 | continue; |
| 739 | y += getRowHeight(i); |
| 740 | |
| 741 | // Ensure the popup is wide enough to fit this item. |
| 742 | Font itemFont = getRowFont(i); |
| 743 | String text = m_popupClient->itemText(i); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 744 | int width = 0; |
| 745 | if (!text.isEmpty()) |
| 746 | width = itemFont.width(TextRun(text)); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 747 | |
| 748 | baseWidth = max(baseWidth, width); |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 749 | // FIXME: http://b/1210481 We should get the padding of individual |
| 750 | // option elements. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 751 | paddingWidth = max<int>(paddingWidth, |
| 752 | m_popupClient->clientPaddingLeft() + m_popupClient->clientPaddingRight()); |
| 753 | lineEndPaddingWidth = max<int>(lineEndPaddingWidth, |
| 754 | isRightAligned ? m_popupClient->clientPaddingLeft() : m_popupClient->clientPaddingRight()); |
| 755 | } |
| 756 | |
| 757 | // Calculate scroll bar width. |
| 758 | int windowHeight = 0; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 759 | m_visibleRows = std::min(numItems(), maxVisibleRows); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 760 | |
| 761 | for (int i = 0; i < m_visibleRows; ++i) { |
| 762 | int rowHeight = getRowHeight(i); |
| 763 | |
| 764 | // Only clip the window height for non-Mac platforms. |
| 765 | if (windowHeight + rowHeight > m_maxHeight) { |
| 766 | m_visibleRows = i; |
| 767 | break; |
| 768 | } |
| 769 | |
| 770 | windowHeight += rowHeight; |
| 771 | } |
| 772 | |
| 773 | // Set our widget and scrollable contents sizes. |
| 774 | int scrollbarWidth = 0; |
| 775 | if (m_visibleRows < numItems()) { |
| 776 | scrollbarWidth = ScrollbarTheme::theme()->scrollbarThickness(); |
| 777 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 778 | // Use minEndOfLinePadding when there is a scrollbar so that we use |
| 779 | // as much as (lineEndPaddingWidth - minEndOfLinePadding) padding |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 780 | // space for scrollbar and allow user to use CSS padding to make the |
| 781 | // popup listbox align with the select element. |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 782 | paddingWidth = paddingWidth - lineEndPaddingWidth + minEndOfLinePadding; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 783 | } |
| 784 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 785 | int windowWidth = baseWidth + scrollbarWidth + paddingWidth; |
| 786 | if (windowWidth > m_maxWindowWidth) { |
| 787 | // windowWidth exceeds m_maxWindowWidth, so we have to clip. |
| 788 | windowWidth = m_maxWindowWidth; |
| 789 | baseWidth = windowWidth - scrollbarWidth - paddingWidth; |
| 790 | m_baseWidth = baseWidth; |
| 791 | } |
| 792 | int contentWidth = windowWidth - scrollbarWidth; |
| 793 | |
| 794 | if (windowWidth < m_baseWidth) { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 795 | windowWidth = m_baseWidth; |
| 796 | contentWidth = m_baseWidth - scrollbarWidth; |
| 797 | } else { |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 798 | m_baseWidth = baseWidth; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | resize(windowWidth, windowHeight); |
| 802 | setContentsSize(IntSize(contentWidth, getRowBounds(numItems() - 1).maxY())); |
| 803 | |
| 804 | if (hostWindow()) |
| 805 | scrollToRevealSelection(); |
| 806 | |
| 807 | invalidate(); |
| 808 | } |
| 809 | |
| 810 | void PopupListBox::clear() |
| 811 | { |
| 812 | for (Vector<PopupItem*>::iterator it = m_items.begin(); it != m_items.end(); ++it) |
| 813 | delete *it; |
| 814 | m_items.clear(); |
| 815 | } |
| 816 | |
| 817 | bool PopupListBox::isPointInBounds(const IntPoint& point) |
| 818 | { |
| 819 | return numItems() && IntRect(0, 0, width(), height()).contains(point); |
| 820 | } |
| 821 | |
| 822 | int PopupListBox::popupContentHeight() const |
| 823 | { |
| 824 | return height(); |
| 825 | } |
| 826 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 827 | } // namespace blink |