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Unified Diff: third_party/polymer/components/core-scroll-header-panel/core-scroll-header-panel.html

Issue 592603004: Revert "Polymer elements added to third_party/polymer." (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 3 months ago
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Index: third_party/polymer/components/core-scroll-header-panel/core-scroll-header-panel.html
diff --git a/third_party/polymer/components/core-scroll-header-panel/core-scroll-header-panel.html b/third_party/polymer/components/core-scroll-header-panel/core-scroll-header-panel.html
deleted file mode 100644
index ae0f9e1eeb55b7eda27842e734f71970941b854d..0000000000000000000000000000000000000000
--- a/third_party/polymer/components/core-scroll-header-panel/core-scroll-header-panel.html
+++ /dev/null
@@ -1,302 +0,0 @@
-<!--
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
--->
-
-<!--
-`core-scroll-header-panel` contains a header section and a content section. The
-header is initially on the top part of the view but it scrolls away with the
-rest of the scrollable content. Upon scrolling slightly up at any point, the
-header scrolls back into view. This saves screen space and allows users to
-access important controls by easily moving them back to the view.
-
-__Important:__ The `core-scroll-header-panel` will not display if its parent does not have a height.
-
-Using [layout attributes](http://www.polymer-project.org/docs/polymer/layout-attrs.html), you can easily make the `core-scroll-header-panel` fill the screen
-
- <body fullbleed layout vertical>
- <core-scroll-header-panel flex>
- <core-toolbar>
- <div>Hello World!</div>
- </core-toolbar>
- </core-scroll-header-panel>
- </body>
-
-or, if you would prefer to do it in CSS, just give `html`, `body`, and `core-scroll-header-panel` a height of 100%:
-
- html, body {
- height: 100%;
- margin: 0;
- }
- core-scroll-header-panel {
- height: 100%;
- }
-
-`core-scroll-header-panel` works well with `core-toolbar` but can use any element
-that represents a header by adding a `core-header` class to it. Use the attribute
-or class `content` to delineate the content section.
-
- <core-scroll-header-panel>
- <core-toolbar>Header</core-toolbar>
- <div content>Content goes here...</div>
- </core-scroll-header-panel>
-
-@group Polymer Core Elements
-@element core-scroll-header-panel
-@homepage github.io
--->
-
-<link rel="import" href="../polymer/polymer.html">
-
-<polymer-element name="core-scroll-header-panel">
-<template>
-
- <link rel="stylesheet" href="core-scroll-header-panel.css">
-
- <div id="mainContainer" on-scroll="{{scroll}}">
-
- <content id="mainContent" select="[content], .content"></content>
-
- </div>
-
- <div id="headerContainer">
-
- <div class="bg-container">
- <div id="condensedHeaderBg"></div>
- <div id="headerBg"></div>
- </div>
-
- <content id="headerContent" select="core-toolbar, .core-header"></content>
-
- </div>
-
-</template>
-<script>
-
- Polymer('core-scroll-header-panel', {
-
- /**
- * Fired when the content has been scrolled.
- *
- * @event scroll
- */
-
- /**
- * Fired when the header is transformed.
- *
- * @event core-header-transform
- */
-
- publish: {
- /**
- * If true, the header's height will condense to `_condensedHeaderHeight`
- * as the user scrolls down from the top of the content area.
- *
- * @attribute condenses
- * @type boolean
- * @default false
- */
- condenses: false,
-
- /**
- * If true, no cross-fade transition from one background to another.
- *
- * @attribute noDissolve
- * @type boolean
- * @default false
- */
- noDissolve: false,
-
- /**
- * If true, the header doesn't slide back in when scrolling back up.
- *
- * @attribute noReveal
- * @type boolean
- * @default false
- */
- noReveal: false,
-
- /**
- * If true, the header is fixed to the top and never moves away.
- *
- * @attribute fixed
- * @type boolean
- * @default false
- */
- fixed: false,
-
- /**
- * If true, the condensed header is always shown and does not move away.
- *
- * @attribute keepCondensedHeader
- * @type boolean
- * @default false
- */
- keepCondensedHeader: false,
-
- /**
- * The height of the header when it is at its full size.
- *
- * By default, the height will be measured when it is ready. If the height
- * changes later the user needs to either set this value to reflect the
- * new height or invoke `measureHeaderHeight()`.
- *
- * @attribute headerHeight
- * @type number
- */
- headerHeight: 0,
-
- /**
- * The height of the header when it is condensed.
- *
- * By default, `_condensedHeaderHeight` is 1/3 of `headerHeight` unless
- * this is specified.
- *
- * @attribute condensedHeaderHeight
- * @type number
- */
- condensedHeaderHeight: 0
- },
-
- prevScrollTop: 0,
-
- headerMargin: 0,
-
- y: 0,
-
- observe: {
- 'headerMargin fixed': 'setup'
- },
-
- domReady: function() {
- this.async('measureHeaderHeight');
- },
-
- get header() {
- return this.$.headerContent.getDistributedNodes()[0];
- },
-
- get scroller() {
- return this.$.mainContainer;
- },
-
- measureHeaderHeight: function() {
- var header = this.header;
- if (this.header) {
- this.headerHeight = header.offsetHeight;
- }
- },
-
- headerHeightChanged: function() {
- if (!this.condensedHeaderHeight) {
- // assume _condensedHeaderHeight is 1/3 of the headerHeight
- this._condensedHeaderHeight = this.headerHeight * 1 / 3;
- }
- this.condensedHeaderHeightChanged();
- },
-
- condensedHeaderHeightChanged: function() {
- if (this.condensedHeaderHeight) {
- this._condensedHeaderHeight = this.condensedHeaderHeight;
- }
- if (this.headerHeight) {
- this.headerMargin = this.headerHeight - this._condensedHeaderHeight;
- }
- },
-
- condensesChanged: function() {
- if (this.condenses) {
- this.scroll();
- } else {
- // reset transform/opacity set on the header
- this.condenseHeader(null);
- }
- },
-
- setup: function() {
- var s = this.scroller.style;
- s.paddingTop = this.fixed ? '' : this.headerHeight + 'px';
- s.top = this.fixed ? this.headerHeight + 'px' : '';
- if (this.fixed) {
- this.transformHeader(null);
- } else {
- this.scroll();
- }
- },
-
- transformHeader: function(y) {
- var s = this.$.headerContainer.style;
- this.translateY(s, -y);
-
- if (this.condenses) {
- this.condenseHeader(y);
- }
-
- this.fire('core-header-transform', {y: y, height: this.headerHeight,
- condensedHeight: this._condensedHeaderHeight});
- },
-
- condenseHeader: function(y) {
- var reset = y == null;
- // adjust top bar in core-header so the top bar stays at the top
- if (this.header.$ && this.header.$.topBar) {
- this.translateY(this.header.$.topBar.style,
- reset ? null : Math.min(y, this.headerMargin));
- }
- // transition header bg
- var hbg = this.$.headerBg.style;
- if (!this.noDissolve) {
- hbg.opacity = reset ? '' : (this.headerMargin - y) / this.headerMargin;
- }
- // adjust header bg so it stays at the center
- this.translateY(hbg, reset ? null : y / 2);
- // transition condensed header bg
- var chbg = this.$.condensedHeaderBg.style;
- if (!this.noDissolve) {
- chbg = this.$.condensedHeaderBg.style;
- chbg.opacity = reset ? '' : y / this.headerMargin;
- // adjust condensed header bg so it stays at the center
- this.translateY(chbg, reset ? null : y / 2);
- }
- },
-
- translateY: function(s, y) {
- s.transform = s.webkitTransform = y == null ? '' :
- 'translate3d(0, ' + y + 'px, 0)';
- },
-
- scroll: function(event) {
- if (!this.header) {
- return;
- }
-
- var sTop = this.scroller.scrollTop;
-
- var y = Math.min(this.keepCondensedHeader ?
- this.headerMargin : this.headerHeight, Math.max(0,
- (this.noReveal ? sTop : this.y + sTop - this.prevScrollTop)));
-
- if (this.condenses && this.prevScrollTop >= sTop && sTop > this.headerMargin) {
- y = Math.max(y, this.headerMargin);
- }
-
- if (!event || !this.fixed && y !== this.y) {
- requestAnimationFrame(this.transformHeader.bind(this, y));
- }
-
- this.prevScrollTop = sTop;
- this.y = y;
-
- if (event) {
- this.fire('scroll', {target: this.scroller}, this, false);
- }
- }
-
- });
-
-</script>
-</polymer-element>
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