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// Copyright (c) 2011 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.
cr.define('media', function() {
'use strict';
/**
* The width and height of a bar drawn on a file canvas in pixels.
*/
var BAR_WIDTH = 500;
var BAR_HEIGHT = 16;
/**
* Draws a 1px white horizontal line across |context|.
*/
function drawLine(context, top) {
context.moveTo(0, top);
context.lineTo(BAR_WIDTH, top);
context.strokeStyle = '#fff';
context.stroke();
}
/**
* Creates an HTMLElement of type |type| with textContent |content|.
* @param {string} type The type of element to create.
* @param {string} content The content to place in the element.
* @return {HTMLElement} A newly initialized element.
*/
function makeElement(type, content) {
var element = document.createElement(type);
element.textContent = content;
return element;
}
/**
* Creates a new <li> containing a <details> with a <summary> and sets
* properties to reference them.
* @return {Object} The new <li>.
*/
function createDetailsLi() {
var li = document.createElement('li');
li.details = document.createElement('details');
li.summary = document.createElement('summary');
li.appendChild(li.details);
li.details.appendChild(li.summary);
return li
}
/**
* Appends each key-value pair in a dictionary to a row in a table.
* @param {Object} dict The dictionary to append.
* @param {HTMLElement} table The <table> element to append to.
*/
function appendDictionaryToTable(dict, table) {
table.textContent = '';
for (var key in dict) {
var tr = document.createElement('tr');
tr.appendChild(makeElement('td', key + ':'));
tr.appendChild(makeElement('td', dict[key]));
table.appendChild(tr);
}
return table;
}
return {
BAR_WIDTH: BAR_WIDTH,
BAR_HEIGHT: BAR_HEIGHT,
drawLine: drawLine,
makeElement: makeElement,
createDetailsLi: createDetailsLi,
appendDictionaryToTable: appendDictionaryToTable
};
});
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