| Index: third_party/polymer/components-chromium/core-header-panel/core-header-panel-extracted.js
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| diff --git a/third_party/polymer/components-chromium/core-header-panel/core-header-panel-extracted.js b/third_party/polymer/components-chromium/core-header-panel/core-header-panel-extracted.js
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..8a0c7bcd814b0ce5d5ef6d08d5e6535602cb8850
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| --- /dev/null
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| +++ b/third_party/polymer/components-chromium/core-header-panel/core-header-panel-extracted.js
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| @@ -0,0 +1,131 @@
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| +
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| +
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| + Polymer('core-header-panel', {
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| +
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| + /**
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| + * Fired when the content has been scrolled. `details.target` returns
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| + * the scrollable element which you can use to access scroll info such as
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| + * `scrollTop`.
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| + *
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| + * @event scroll
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| + */
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| +
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| + publish: {
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| + /**
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| + * Controls header and scrolling behavior. Options are
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| + * `standard`, `seamed`, `waterfall`, `waterfall-tall`,
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| + * `waterfall-medium-tall`, `scroll` and `cover`.
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| + * Default is `standard`.
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| + *
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| + * `standard`: The header is a step above the panel. The header will consume the
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| + * panel at the point of entry, preventing it from passing through to the
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| + * opposite side.
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| + *
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| + * `seamed`: The header is presented as seamed with the panel.
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| + *
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| + * `waterfall`: Similar to standard mode, but header is initially presented as
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| + * seamed with panel, but then separates to form the step.
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| + *
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| + * `waterfall-tall`: The header is initially taller (`tall` class is added to
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| + * the header). As the user scrolls, the header separates (forming an edge)
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| + * while condensing (`tall` class is removed from the header).
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| + *
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| + * `scroll`: The header keeps its seam with the panel, and is pushed off screen.
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| + *
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| + * `cover`: The panel covers the whole `core-header-panel` including the
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| + * header. This allows user to style the panel in such a way that the panel is
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| + * partially covering the header.
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| + *
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| + * <style>
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| + * core-header-panel[mode=cover]::shadow #mainContainer {
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| + * left: 80px;
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| + * }
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| + * .content {
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| + * margin: 60px 60px 60px 0;
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| + * }
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| + * </style>
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| + *
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| + * <core-header-panel mode="cover">
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| + * <core-appbar class="tall">
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| + * <core-icon-button icon="menu"></core-icon-button>
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| + * </core-appbar>
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| + * <div class="content"></div>
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| + * </core-header-panel>
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| + *
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| + * @attribute mode
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| + * @type string
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| + * @default ''
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| + */
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| + mode: {value: '', reflect: true},
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| +
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| + /**
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| + * The class used in waterfall-tall mode. Change this if the header
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| + * accepts a different class for toggling height, e.g. "medium-tall"
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| + *
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| + * @attribute tallClass
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| + * @type string
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| + * @default 'tall'
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| + */
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| + tallClass: 'tall',
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| +
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| + /**
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| + * If true, the drop-shadow is always shown no matter what mode is set to.
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| + *
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| + * @attribute shadow
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| + * @type boolean
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| + * @default false
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| + */
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| + shadow: false
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| + },
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| +
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| + domReady: function() {
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| + this.async('scroll');
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| + },
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| +
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| + modeChanged: function() {
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| + this.scroll();
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| + },
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| +
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| + get header() {
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| + return this.$.headerContent.getDistributedNodes()[0];
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| + },
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| +
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| + /**
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| + * Returns the scrollable element.
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| + *
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| + * @property scroller
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| + * @type Object
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| + */
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| + get scroller() {
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| + return this.mode === 'scroll' ?
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| + this.$.outerContainer : this.$.mainContainer;
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| + },
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| +
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| + scroll: function() {
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| + var shadowMode = {'waterfall': 1, 'waterfall-tall': 1};
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| + var noShadow = {'seamed': 1, 'cover': 1, 'scroll': 1};
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| + var tallMode = {'waterfall-tall': 1};
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| +
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| + var main = this.$.mainContainer;
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| + var header = this.header;
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| +
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| + var sTop = main.scrollTop;
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| + var atTop = sTop === 0;
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| +
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| + if (header) {
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| + this.$.dropShadow.classList.toggle('hidden', !this.shadow &&
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| + (atTop && shadowMode[this.mode] || noShadow[this.mode]));
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| +
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| + if (tallMode[this.mode]) {
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| + header.classList.toggle(this.tallClass, atTop ||
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| + main.scrollHeight < this.$.outerContainer.offsetHeight);
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| + }
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| +
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| + header.classList.toggle('animate', tallMode[this.mode]);
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| + }
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| +
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| + this.fire('scroll', {target: this.scroller}, this, false);
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| + }
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| +
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| + });
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| +
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|