Yury Delendik
11 years ago
12 changed files with 284 additions and 318 deletions
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ |
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/* Copyright 2014 Mozilla Foundation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/* globals PDFJS, Util, AnnotationType */ |
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'use strict'; |
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var HIGHLIGHT_OFFSET = 4; // px
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var ANNOT_MIN_SIZE = 10; // px
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var AnnotationUtils = (function AnnotationUtilsClosure() { |
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// TODO(mack): This dupes some of the logic in CanvasGraphics.setFont()
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function setTextStyles(element, item, fontObj) { |
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var style = element.style; |
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style.fontSize = item.fontSize + 'px'; |
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style.direction = item.fontDirection < 0 ? 'rtl': 'ltr'; |
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if (!fontObj) { |
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return; |
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} |
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style.fontWeight = fontObj.black ? |
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(fontObj.bold ? 'bolder' : 'bold') : |
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(fontObj.bold ? 'bold' : 'normal'); |
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style.fontStyle = fontObj.italic ? 'italic' : 'normal'; |
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var fontName = fontObj.loadedName; |
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var fontFamily = fontName ? '"' + fontName + '", ' : ''; |
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// Use a reasonable default font if the font doesn't specify a fallback
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var fallbackName = fontObj.fallbackName || 'Helvetica, sans-serif'; |
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style.fontFamily = fontFamily + fallbackName; |
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} |
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// TODO(mack): Remove this, it's not really that helpful.
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function getEmptyContainer(tagName, rect, borderWidth) { |
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var bWidth = borderWidth || 0; |
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var element = document.createElement(tagName); |
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element.style.borderWidth = bWidth + 'px'; |
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var width = rect[2] - rect[0] - 2 * bWidth; |
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var height = rect[3] - rect[1] - 2 * bWidth; |
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element.style.width = width + 'px'; |
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element.style.height = height + 'px'; |
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return element; |
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} |
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function initContainer(item) { |
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var container = getEmptyContainer('section', item.rect, item.borderWidth); |
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container.style.backgroundColor = item.color; |
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var color = item.color; |
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var rgb = []; |
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for (var i = 0; i < 3; ++i) { |
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rgb[i] = Math.round(color[i] * 255); |
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} |
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item.colorCssRgb = Util.makeCssRgb(rgb); |
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var highlight = document.createElement('div'); |
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highlight.className = 'annotationHighlight'; |
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highlight.style.left = highlight.style.top = -HIGHLIGHT_OFFSET + 'px'; |
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highlight.style.right = highlight.style.bottom = -HIGHLIGHT_OFFSET + 'px'; |
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highlight.setAttribute('hidden', true); |
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item.highlightElement = highlight; |
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container.appendChild(item.highlightElement); |
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return container; |
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} |
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function getHtmlElementForTextWidgetAnnotation(item, commonObjs) { |
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var element = getEmptyContainer('div', item.rect, 0); |
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element.style.display = 'table'; |
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var content = document.createElement('div'); |
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content.textContent = item.fieldValue; |
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var textAlignment = item.textAlignment; |
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content.style.textAlign = ['left', 'center', 'right'][textAlignment]; |
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content.style.verticalAlign = 'middle'; |
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content.style.display = 'table-cell'; |
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var fontObj = item.fontRefName ? |
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commonObjs.getData(item.fontRefName) : null; |
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setTextStyles(content, item, fontObj); |
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element.appendChild(content); |
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return element; |
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} |
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function getHtmlElementForTextAnnotation(item, commonObjs) { |
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var rect = item.rect; |
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// sanity check because of OOo-generated PDFs
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if ((rect[3] - rect[1]) < ANNOT_MIN_SIZE) { |
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rect[3] = rect[1] + ANNOT_MIN_SIZE; |
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} |
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if ((rect[2] - rect[0]) < ANNOT_MIN_SIZE) { |
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rect[2] = rect[0] + (rect[3] - rect[1]); // make it square
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} |
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var container = initContainer(item); |
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container.className = 'annotText'; |
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var image = document.createElement('img'); |
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image.style.height = container.style.height; |
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image.style.width = container.style.width; |
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var iconName = item.name; |
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image.src = PDFJS.imageResourcesPath + 'annotation-' + |
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iconName.toLowerCase() + '.svg'; |
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image.alt = '[{{type}} Annotation]'; |
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image.dataset.l10nId = 'text_annotation_type'; |
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image.dataset.l10nArgs = JSON.stringify({type: iconName}); |
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var contentWrapper = document.createElement('div'); |
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contentWrapper.className = 'annotTextContentWrapper'; |
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contentWrapper.style.left = Math.floor(rect[2] - rect[0] + 5) + 'px'; |
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contentWrapper.style.top = '-10px'; |
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var content = document.createElement('div'); |
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content.className = 'annotTextContent'; |
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content.setAttribute('hidden', true); |
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var i, ii; |
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if (item.hasBgColor) { |
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var color = item.color; |
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var rgb = []; |
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for (i = 0; i < 3; ++i) { |
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// Enlighten the color (70%)
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var c = Math.round(color[i] * 255); |
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rgb[i] = Math.round((255 - c) * 0.7) + c; |
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} |
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content.style.backgroundColor = Util.makeCssRgb(rgb); |
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} |
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var title = document.createElement('h1'); |
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var text = document.createElement('p'); |
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title.textContent = item.title; |
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if (!item.content && !item.title) { |
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content.setAttribute('hidden', true); |
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} else { |
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var e = document.createElement('span'); |
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var lines = item.content.split(/(?:\r\n?|\n)/); |
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for (i = 0, ii = lines.length; i < ii; ++i) { |
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var line = lines[i]; |
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e.appendChild(document.createTextNode(line)); |
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if (i < (ii - 1)) { |
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e.appendChild(document.createElement('br')); |
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} |
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} |
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text.appendChild(e); |
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var pinned = false; |
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var showAnnotation = function showAnnotation(pin) { |
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if (pin) { |
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pinned = true; |
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} |
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if (content.hasAttribute('hidden')) { |
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container.style.zIndex += 1; |
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content.removeAttribute('hidden'); |
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} |
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}; |
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var hideAnnotation = function hideAnnotation(unpin) { |
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if (unpin) { |
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pinned = false; |
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} |
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if (!content.hasAttribute('hidden') && !pinned) { |
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container.style.zIndex -= 1; |
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content.setAttribute('hidden', true); |
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} |
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}; |
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var toggleAnnotation = function toggleAnnotation() { |
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if (pinned) { |
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hideAnnotation(true); |
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} else { |
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showAnnotation(true); |
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} |
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}; |
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image.addEventListener('click', function image_clickHandler() { |
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toggleAnnotation(); |
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}, false); |
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image.addEventListener('mouseover', function image_mouseOverHandler() { |
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showAnnotation(); |
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}, false); |
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image.addEventListener('mouseout', function image_mouseOutHandler() { |
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hideAnnotation(); |
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}, false); |
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content.addEventListener('click', function content_clickHandler() { |
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hideAnnotation(true); |
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}, false); |
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} |
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content.appendChild(title); |
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content.appendChild(text); |
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contentWrapper.appendChild(content); |
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container.appendChild(image); |
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container.appendChild(contentWrapper); |
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return container; |
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} |
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function getHtmlElementForLinkAnnotation(item, commonObjs) { |
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var container = initContainer(item); |
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container.className = 'annotLink'; |
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container.style.borderColor = item.colorCssRgb; |
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container.style.borderStyle = 'solid'; |
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var link = document.createElement('a'); |
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link.href = link.title = item.url || ''; |
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container.appendChild(link); |
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return container; |
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} |
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function getHtmlElement(data, objs) { |
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switch (data.annotationType) { |
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case AnnotationType.WIDGET: |
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return getHtmlElementForTextWidgetAnnotation(data, objs); |
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case AnnotationType.TEXT: |
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return getHtmlElementForTextAnnotation(data, objs); |
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case AnnotationType.LINK: |
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return getHtmlElementForLinkAnnotation(data, objs); |
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default: |
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throw new Error('Unsupported annotationType: ' + data.annotationType); |
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} |
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} |
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return { |
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getHtmlElement: getHtmlElement |
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}; |
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})(); |
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