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Merge pull request #2802 from AlchemyCMS/preview-window-component
Convert Preview Window into web component
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app/assets/javascripts/alchemy/alchemy.preview_window.js.coffee
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| import "alchemy_admin/components/button" | ||
| import "alchemy_admin/components/char_counter" | ||
| import "alchemy_admin/components/clipboard_button" | ||
| import "alchemy_admin/components/datepicker" | ||
| import "alchemy_admin/components/dialog_link" | ||
| import "alchemy_admin/components/element_editor" | ||
| import "alchemy_admin/components/elements_window" | ||
| import "alchemy_admin/components/message" | ||
| import "alchemy_admin/components/growl" | ||
| import "alchemy_admin/components/icon" | ||
| import "alchemy_admin/components/ingredient_group" | ||
| import "alchemy_admin/components/link_buttons" | ||
| import "alchemy_admin/components/node_select" | ||
| import "alchemy_admin/components/uploader" | ||
| import "alchemy_admin/components/overlay" | ||
| import "alchemy_admin/components/page_select" | ||
| import "alchemy_admin/components/preview_window" | ||
| import "alchemy_admin/components/select" | ||
| import "alchemy_admin/components/spinner" | ||
| import "alchemy_admin/components/tags_autocomplete" | ||
| import "alchemy_admin/components/tinymce" |
121 changes: 121 additions & 0 deletions
121
app/javascript/alchemy_admin/components/preview_window.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| const MIN_WIDTH = 240 | ||
|
|
||
| class PreviewWindow extends HTMLIFrameElement { | ||
| #afterLoad | ||
| #reloadIcon | ||
|
|
||
| constructor() { | ||
| super() | ||
| this.addEventListener("load", this) | ||
| } | ||
|
|
||
| handleEvent(evt) { | ||
| if (evt.type === "load") { | ||
| this.#stopSpinner() | ||
| this.#afterLoad?.call(this, evt) | ||
| } | ||
| } | ||
|
|
||
| connectedCallback() { | ||
| let url = this.url | ||
|
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| this.#attachEvents() | ||
|
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| if (window.localStorage.getItem("alchemy-preview-url")) { | ||
| url = window.localStorage.getItem("alchemy-preview-url") | ||
| this.previewUrlSelect.value = url | ||
| } | ||
|
|
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| this.refresh(url) | ||
| } | ||
|
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| disconnectedCallback() { | ||
| key.unbind("alt+r") | ||
| } | ||
|
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| postMessage(data) { | ||
| this.contentWindow.postMessage(data, "*") | ||
| } | ||
|
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| resize(width) { | ||
| if (width < MIN_WIDTH) { | ||
| width = MIN_WIDTH | ||
| } | ||
| this.style.width = `${width}px` | ||
| } | ||
|
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| refresh(url) { | ||
| this.#startSpinner() | ||
|
|
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| if (url) { | ||
| this.src = url | ||
| } else { | ||
| this.src = this.url | ||
| } | ||
|
|
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| return new Promise((resolve) => { | ||
| this.#afterLoad = resolve | ||
| }) | ||
| } | ||
|
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| #attachEvents() { | ||
| this.reloadButton?.addEventListener("click", (evt) => { | ||
| evt.preventDefault() | ||
| this.refresh() | ||
| }) | ||
|
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| key("alt+r", () => this.refresh()) | ||
|
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| // Need to listen with jQuery here because select2 does not emit native events. | ||
| $(this.sizeSelect).on("change", (evt) => { | ||
| const select = evt.target | ||
| const width = select.value | ||
|
|
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| if (width === "auto") { | ||
| this.style.width = null | ||
| } else { | ||
| this.resize(width) | ||
| } | ||
| }) | ||
|
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| this.previewUrlSelect?.addEventListener("change", (evt) => { | ||
| const url = evt.target.value | ||
| window.localStorage.setItem("alchemy-preview-url", url) | ||
| this.refresh(url) | ||
| }) | ||
| } | ||
|
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| #startSpinner() { | ||
| this.#reloadIcon = this.reloadButton.innerHTML | ||
| this.reloadButton.innerHTML = `<alchemy-spinner size="small"></alchemy-spinner>` | ||
| } | ||
|
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| #stopSpinner() { | ||
| this.reloadButton.innerHTML = this.#reloadIcon | ||
| } | ||
|
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| get url() { | ||
| return this.getAttribute("url") | ||
| } | ||
|
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| get sizeSelect() { | ||
| return document.querySelector("select#preview_size") | ||
| } | ||
|
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| get previewUrlSelect() { | ||
| return document.querySelector("select#preview_url") | ||
| } | ||
|
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| get reloadButton() { | ||
| return document.querySelector("#reload_preview_button") | ||
| } | ||
| } | ||
|
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| customElements.define("alchemy-preview-window", PreviewWindow, { | ||
| extends: "iframe" | ||
| }) | ||
|
|
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| export function reloadPreview() { | ||
| const previewWindow = document.getElementById("alchemy_preview_window") | ||
| previewWindow.refresh() | ||
| } |
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