613b49c64e
The addition of syntax highlighting silently broke copy/paste functionality due to the addition of another layer of div nesting. Related to this bug are some issues with correct text selection in unified diff view, so this patch addresses them as well. Bug: Issue 4317 Change-Id: Iac7379de4131ab4e44905a54218d42fcfe67ce62
97 lines
2.7 KiB
JavaScript
97 lines
2.7 KiB
JavaScript
// Copyright (C) 2016 The Android Open Source Project
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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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(function() {
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'use strict';
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Polymer({
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is: 'gr-diff-selection',
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properties: {
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_cachedDiffBuilder: Object,
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},
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listeners: {
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'copy': '_handleCopy',
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'down': '_handleDown',
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},
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attached: function() {
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this.classList.add('selected-right');
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},
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get diffBuilder() {
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if (!this._cachedDiffBuilder) {
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this._cachedDiffBuilder =
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Polymer.dom(this).querySelector('gr-diff-builder');
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}
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return this._cachedDiffBuilder;
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},
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_handleDown: function(e) {
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var lineEl = this.diffBuilder.getLineElByChild(e.target);
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if (!lineEl) {
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return;
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}
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var side = this.diffBuilder.getSideByLineEl(lineEl);
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var targetClass = 'selected-' + side;
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var alternateClass = 'selected-' + (side === 'left' ? 'right' : 'left');
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if (this.classList.contains(alternateClass)) {
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this.classList.remove(alternateClass);
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}
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if (!this.classList.contains(targetClass)) {
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this.classList.add(targetClass);
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}
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},
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_handleCopy: function(e) {
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if (!e.target.classList.contains('contentText') &&
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!e.target.classList.contains('gr-syntax')) {
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return;
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}
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var lineEl = this.diffBuilder.getLineElByChild(e.target);
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if (!lineEl) {
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return;
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}
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var side = this.diffBuilder.getSideByLineEl(lineEl);
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var text = this._getSelectedText(side);
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e.clipboardData.setData('Text', text);
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e.preventDefault();
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},
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_getSelectedText: function(side) {
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var sel = window.getSelection();
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if (sel.rangeCount != 1) {
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return; // No multi-select support yet.
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}
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var range = sel.getRangeAt(0);
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var fragment = range.cloneContents();
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var selector = '.contentText';
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selector += '[data-side="' + side + '"]';
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selector += ':not(:empty)';
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var contentEls = Polymer.dom(fragment).querySelectorAll(selector);
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if (contentEls.length === 0) {
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return fragment.textContent;
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}
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var text = '';
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for (var i = 0; i < contentEls.length; i++) {
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text += contentEls[i].textContent + '\n';
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}
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return text;
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},
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});
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})();
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