Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Google Inc. |
| 3 | * Licensed to The Android Open Source Project. |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 18 | var BLOCKED_SRC_ATTR = "blocked-src"; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 19 | |
| 20 | /** |
| 21 | * Returns the page offset of an element. |
| 22 | * |
| 23 | * @param {Element} element The element to return the page offset for. |
| 24 | * @return {left: number, top: number} A tuple including a left and top value representing |
| 25 | * the page offset of the element. |
| 26 | */ |
| 27 | function getTotalOffset(el) { |
| 28 | var result = { |
| 29 | left: 0, |
| 30 | top: 0 |
| 31 | }; |
| 32 | var parent = el; |
| 33 | |
| 34 | while (parent) { |
| 35 | result.left += parent.offsetLeft; |
| 36 | result.top += parent.offsetTop; |
| 37 | parent = parent.offsetParent; |
| 38 | } |
| 39 | |
| 40 | return result; |
| 41 | } |
| 42 | |
| 43 | function toggleQuotedText(e) { |
| 44 | var toggleElement = e.target; |
| 45 | var elidedTextElement = toggleElement.nextSibling; |
| 46 | var isHidden = getComputedStyle(elidedTextElement).display == 'none'; |
| 47 | toggleElement.innerHTML = isHidden ? MSG_HIDE_ELIDED : MSG_SHOW_ELIDED; |
| 48 | elidedTextElement.style.display = isHidden ? 'block' : 'none'; |
Andy Huang | c754357 | 2012-04-03 15:34:29 -0700 | [diff] [blame] | 49 | measurePositions(); |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | function collapseQuotedText() { |
| 53 | var i; |
| 54 | var elements = document.getElementsByClassName("elided-text"); |
| 55 | var elidedElement, toggleElement; |
| 56 | for (i = 0; i < elements.length; i++) { |
| 57 | elidedElement = elements[i]; |
| 58 | toggleElement = document.createElement("div"); |
Andy Huang | 82119af | 2012-06-26 17:15:40 -0700 | [diff] [blame] | 59 | toggleElement.className = "mail-elided-text"; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 60 | toggleElement.innerHTML = MSG_SHOW_ELIDED; |
| 61 | toggleElement.onclick = toggleQuotedText; |
| 62 | elidedElement.parentNode.insertBefore(toggleElement, elidedElement); |
| 63 | } |
| 64 | } |
| 65 | |
Andy Huang | 2301470 | 2012-07-09 12:50:36 -0700 | [diff] [blame] | 66 | function normalizeMessageWidths() { |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 67 | var i; |
| 68 | var elements = document.getElementsByClassName("mail-message-content"); |
| 69 | var messageElement; |
Andy Huang | 256b35c | 2012-08-22 15:19:13 -0700 | [diff] [blame^] | 70 | var documentWidth = document.body.offsetWidth; |
| 71 | |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 72 | for (i = 0; i < elements.length; i++) { |
| 73 | messageElement = elements[i]; |
Andy Huang | 2301470 | 2012-07-09 12:50:36 -0700 | [diff] [blame] | 74 | messageElement.style.zoom = documentWidth / messageElement.scrollWidth; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 75 | } |
| 76 | } |
| 77 | |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 78 | function hideUnsafeImages() { |
| 79 | var i, bodyCount; |
| 80 | var j, imgCount; |
| 81 | var body, image; |
| 82 | var images; |
| 83 | var showImages; |
| 84 | var bodies = document.getElementsByClassName("mail-message-content"); |
| 85 | for (i = 0, bodyCount = bodies.length; i < bodyCount; i++) { |
| 86 | body = bodies[i]; |
| 87 | showImages = body.classList.contains("mail-show-images"); |
| 88 | |
| 89 | images = body.getElementsByTagName("img"); |
| 90 | for (j = 0, imgCount = images.length; j < imgCount; j++) { |
| 91 | image = images[j]; |
Paul Westbrook | 41dca18 | 2012-08-07 10:43:42 -0700 | [diff] [blame] | 92 | rewriteRelativeImageSrc(image); |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 93 | attachImageLoadListener(image); |
| 94 | // TODO: handle inline image attachments for all supported protocols |
| 95 | if (!showImages) { |
| 96 | blockImage(image); |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | |
Paul Westbrook | 41dca18 | 2012-08-07 10:43:42 -0700 | [diff] [blame] | 102 | /** |
| 103 | * Changes relative paths to absolute path by pre-pending the account uri |
| 104 | * @param {Element} imgElement Image for which the src path will be updated. |
| 105 | */ |
| 106 | function rewriteRelativeImageSrc(imgElement) { |
| 107 | var src = imgElement.src; |
Paul Westbrook | cebcc64 | 2012-08-08 10:06:04 -0700 | [diff] [blame] | 108 | |
| 109 | // DOC_BASE_URI will always be a unique x-thread:// uri for this particular conversation |
| 110 | if (src.indexOf(DOC_BASE_URI) == 0 && (DOC_BASE_URI != CONVERSATION_BASE_URI)) { |
| 111 | // The conversation specifies a different base uri than the document |
| 112 | src = CONVERSATION_BASE_URI + src.substring(DOC_BASE_URI.length); |
| 113 | imgElement.src = src; |
Paul Westbrook | 41dca18 | 2012-08-07 10:43:42 -0700 | [diff] [blame] | 114 | } |
| 115 | }; |
| 116 | |
| 117 | |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 118 | function attachImageLoadListener(imageElement) { |
| 119 | // Reset the src attribute to the empty string because onload will only fire if the src |
| 120 | // attribute is set after the onload listener. |
| 121 | var originalSrc = imageElement.src; |
| 122 | imageElement.src = ''; |
| 123 | imageElement.onload = measurePositions; |
| 124 | imageElement.src = originalSrc; |
| 125 | } |
| 126 | |
| 127 | function blockImage(imageElement) { |
| 128 | var src = imageElement.src; |
Paul Westbrook | 41dca18 | 2012-08-07 10:43:42 -0700 | [diff] [blame] | 129 | if (src.indexOf("http://") == 0 || src.indexOf("https://") == 0 || |
| 130 | src.indexOf("content://") == 0) { |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 131 | imageElement.setAttribute(BLOCKED_SRC_ATTR, src); |
| 132 | imageElement.src = "data:"; |
| 133 | } |
| 134 | } |
| 135 | |
Andy Huang | 2301470 | 2012-07-09 12:50:36 -0700 | [diff] [blame] | 136 | function setWideViewport() { |
| 137 | var metaViewport = document.getElementById('meta-viewport'); |
| 138 | metaViewport.setAttribute('content', 'width=' + WIDE_VIEWPORT_WIDTH); |
| 139 | } |
| 140 | |
| 141 | // BEGIN Java->JavaScript handlers |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 142 | function measurePositions() { |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 143 | var overlayBottoms; |
Andy Huang | b5078b2 | 2012-03-05 19:52:29 -0800 | [diff] [blame] | 144 | var h; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 145 | var i; |
| 146 | var len; |
| 147 | |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 148 | var expandedSpacerDivs = document.querySelectorAll(".expanded > .spacer"); |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 149 | |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 150 | overlayBottoms = new Array(expandedSpacerDivs.length + 1); |
| 151 | for (i = 0, len = expandedSpacerDivs.length; i < len; i++) { |
| 152 | h = expandedSpacerDivs[i].offsetHeight; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 153 | // addJavascriptInterface handler only supports string arrays |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 154 | overlayBottoms[i] = "" + (getTotalOffset(expandedSpacerDivs[i]).top + h); |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 155 | } |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 156 | // add an extra one to mark the bottom of the last message |
| 157 | overlayBottoms[i] = "" + document.body.offsetHeight; |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 158 | |
Andy Huang | 7bdc375 | 2012-03-25 17:18:19 -0700 | [diff] [blame] | 159 | window.mail.onWebContentGeometryChange(overlayBottoms); |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 160 | } |
| 161 | |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 162 | function unblockImages(messageDomId) { |
| 163 | var i, images, imgCount, image, blockedSrc; |
| 164 | var msg = document.getElementById(messageDomId); |
| 165 | if (!msg) { |
| 166 | console.log("can't unblock, no matching message for id: " + messageDomId); |
| 167 | return; |
| 168 | } |
| 169 | images = msg.getElementsByTagName("img"); |
| 170 | for (i = 0, imgCount = images.length; i < imgCount; i++) { |
| 171 | image = images[i]; |
| 172 | blockedSrc = image.getAttribute(BLOCKED_SRC_ATTR); |
| 173 | if (blockedSrc) { |
| 174 | image.src = blockedSrc; |
| 175 | image.removeAttribute(BLOCKED_SRC_ATTR); |
| 176 | } |
| 177 | } |
| 178 | } |
Andy Huang | c754357 | 2012-04-03 15:34:29 -0700 | [diff] [blame] | 179 | |
| 180 | function setMessageHeaderSpacerHeight(messageDomId, spacerHeight) { |
| 181 | var spacer = document.querySelector("#" + messageDomId + " > .mail-message-header"); |
| 182 | if (!spacer) { |
| 183 | console.log("can't set spacer for message with id: " + messageDomId); |
| 184 | return; |
| 185 | } |
| 186 | spacer.style.height = spacerHeight + "px"; |
| 187 | measurePositions(); |
| 188 | } |
| 189 | |
| 190 | function setMessageBodyVisible(messageDomId, isVisible, spacerHeight) { |
| 191 | var i, len; |
| 192 | var visibility = isVisible ? "block" : "none"; |
| 193 | var messageDiv = document.querySelector("#" + messageDomId); |
| 194 | var collapsibleDivs = document.querySelectorAll("#" + messageDomId + " > .collapsible"); |
| 195 | if (!messageDiv || collapsibleDivs.length == 0) { |
| 196 | console.log("can't set body visibility for message with id: " + messageDomId); |
| 197 | return; |
| 198 | } |
| 199 | messageDiv.classList.toggle("expanded"); |
| 200 | for (i = 0, len = collapsibleDivs.length; i < len; i++) { |
| 201 | collapsibleDivs[i].style.display = visibility; |
| 202 | } |
| 203 | setMessageHeaderSpacerHeight(messageDomId, spacerHeight); |
| 204 | } |
Andy Huang | 46dfba6 | 2012-04-19 01:47:32 -0700 | [diff] [blame] | 205 | |
| 206 | function replaceSuperCollapsedBlock(startIndex) { |
| 207 | var parent, block, header; |
| 208 | |
| 209 | block = document.querySelector(".mail-super-collapsed-block[index='" + startIndex + "']"); |
| 210 | if (!block) { |
| 211 | console.log("can't expand super collapsed block at index: " + startIndex); |
| 212 | return; |
| 213 | } |
| 214 | parent = block.parentNode; |
| 215 | block.innerHTML = window.mail.getTempMessageBodies(); |
| 216 | |
| 217 | header = block.firstChild; |
| 218 | while (header) { |
| 219 | parent.insertBefore(header, block); |
| 220 | header = block.firstChild; |
| 221 | } |
| 222 | parent.removeChild(block); |
| 223 | measurePositions(); |
| 224 | } |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 225 | // END Java->JavaScript handlers |
| 226 | |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 227 | collapseQuotedText(); |
Andy Huang | 3233bff | 2012-03-20 19:38:45 -0700 | [diff] [blame] | 228 | hideUnsafeImages(); |
Andy Huang | 2301470 | 2012-07-09 12:50:36 -0700 | [diff] [blame] | 229 | normalizeMessageWidths(); |
| 230 | //setWideViewport(); |
Andy Huang | f70fc40 | 2012-02-17 15:37:42 -0800 | [diff] [blame] | 231 | measurePositions(); |
| 232 | |