| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/tracing/model/event_set.html"> |
| <link rel="import" href="/tracing/ui/base/ui.html"> |
| <link rel="import" href="/tracing/ui/brushing_state_controller.html"> |
| |
| <dom-module id='tr-ui-a-analysis-link'> |
| <template> |
| <style> |
| :host { |
| display: inline; |
| cursor: pointer; |
| cursor: pointer; |
| white-space: nowrap; |
| } |
| a { |
| text-decoration: underline; |
| } |
| </style> |
| <a href="{{href}}" on-click="onClicked_" on-mouseenter="onMouseEnter_" on-mouseleave="onMouseLeave_"><content></content></a> |
| |
| </template> |
| </dom-module> |
| <script> |
| 'use strict'; |
| |
| Polymer({ |
| is: 'tr-ui-a-analysis-link', |
| |
| properties: { |
| href: { |
| type: String |
| } |
| }, |
| |
| listeners: { |
| 'click': 'onClicked_', |
| 'mouseenter': 'onMouseEnter_', |
| 'mouseleave': 'onMouseLeave_' |
| }, |
| |
| ready: function() { |
| this.selection_ = undefined; |
| }, |
| |
| attached: function() { |
| // Save an instance of the controller since it's going to be used in |
| // detached() where it can no longer be obtained. |
| this.controller_ = |
| tr.c.BrushingStateController.getControllerForElement(this); |
| }, |
| |
| detached: function() { |
| // Reset highlights. |
| this.clearHighlight_(); |
| this.controller_ = undefined; |
| }, |
| |
| set color(c) { |
| this.style.color = c; |
| }, |
| |
| /** |
| * @return {*|function():*} |
| */ |
| get selection() { |
| return this.selection_; |
| }, |
| |
| /** |
| * |selection| can be anything except a function, or else a function that |
| * can return anything. |
| * |
| * In the context of trace_viewer, |selection| is typically an EventSet, |
| * whose events will be highlighted by trace_viewer when this link is |
| * clicked or mouse-entered. |
| * |
| * If |selection| is not a function, then it will be dispatched to this |
| * link's embedder via a RequestSelectionChangeEvent when this link is |
| * clicked or mouse-entered. |
| * |
| * If |selection| is a function, then it will be called when this link is |
| * clicked or mouse-entered, and its result will be dispatched to this |
| * link's embedder via a RequestSelectionChangeEvent. |
| * |
| * @param {*|function():*} selection |
| */ |
| set selection(selection) { |
| this.selection_ = selection; |
| Polymer.dom(this).textContent = selection.userFriendlyName; |
| }, |
| |
| setSelectionAndContent: function(selection, opt_textContent) { |
| this.selection_ = selection; |
| if (opt_textContent) |
| Polymer.dom(this).textContent = opt_textContent; |
| }, |
| |
| /** |
| * If |selection| is a function, call it and return the result. |
| * Otherwise return |selection| directly. |
| * |
| * @return {*} |
| */ |
| getCurrentSelection_: function() { |
| // Gets the current selection, invoking the selection function if needed. |
| if (typeof this.selection_ === 'function') |
| return this.selection_(); |
| return this.selection_; |
| }, |
| |
| setHighlight_: function(opt_eventSet) { |
| if (this.controller_) |
| this.controller_.changeAnalysisLinkHoveredEvents(opt_eventSet); |
| }, |
| |
| clearHighlight_: function(opt_eventSet) { |
| this.setHighlight_(); |
| }, |
| |
| onClicked_: function(clickEvent) { |
| if (!this.selection_) |
| return; |
| |
| clickEvent.stopPropagation(); |
| |
| var event = new tr.model.RequestSelectionChangeEvent(); |
| event.selection = this.getCurrentSelection_(); |
| this.dispatchEvent(event); |
| }, |
| |
| onMouseEnter_: function() { |
| this.setHighlight_(this.getCurrentSelection_()); |
| }, |
| |
| onMouseLeave_: function() { |
| this.clearHighlight_(); |
| } |
| }); |
| </script> |
