CCM NG: InsertMediaCommand for ccm-editor

git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@5226 8810af33-2d31-482b-a856-94f89814c4df

ccm-cms/src/main/java/org/librecms/assets/VideoAsset.java

@@ -19,6 +19,7 @@
 package org.librecms.assets;
 
 import com.arsdigita.cms.ui.assets.forms.AudioForm;
+
 import org.hibernate.envers.Audited;
 
 import java.io.Serializable;

ccm-cms/src/main/java/org/librecms/contentsection/rs/Assets.java

@@ -53,9 +53,9 @@ import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
 
 /**
- * Provides a Web Service (build using JAX-RS). Used for example by the 
+ * Provides a Web Service (build using JAX-RS). Used for example by the
  * {@link AssetSearchWidget}.
- * 
+ *
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
@@ -67,7 +67,7 @@ public class Assets {
 
     @Inject
     private FolderRepository folderRepo;
-    
+
     @Inject
     private FolderManager folderManager;
 
@@ -76,7 +76,7 @@ public class Assets {
 
     @Inject
     private AssetManager assetManager;
-    
+
     @Inject
     private AssetTypesManager assetTypesManager;
 
@@ -116,16 +116,18 @@ public class Assets {
         result.put("type",
                    Folder.class.getName());
         result.put("place", "");
-        
+
         return result;
     }
 
     private Map<String, String> createAssetMapEntry(final Asset asset) {
         final Map<String, String> result = new HashMap<>();
 
-        result.put("assetId", 
+        result.put("assetId",
                    Long.toString(asset.getObjectId()));
-        
+
+        result.put("uuid", asset.getUuid());
+
         result.put("title",
                    asset.getTitle().getValue(globalizationHelper
                        .getNegotiatedLocale()));
@@ -142,12 +144,12 @@ public class Assets {
 
         final Optional<Folder> assetFolder = assetManager.getAssetFolder(asset);
         if (assetFolder.isPresent()) {
-        result.put("place", 
-                   folderManager.getFolderPath(assetFolder.get()));
+            result.put("place",
+                       folderManager.getFolderPath(assetFolder.get()));
         } else {
             result.put("place", "");
         }
-        
+
         return result;
     }
 

ccm-editor/src/main/typescript/ccm-editor/ccm-cms-editor.ts

@@ -62,11 +62,11 @@ export class InsertInternalLinkCommand extends CCMEditorCommand {
                 .setAttribute("id", "ccm-editor-contentsection-select");
             const filterInputLabel: Element = filterForm
                 .appendChild(document.createElement("label"));
-            filterInputLabel.setAttribute("id", "ccm-editor-itemfilter");
+            filterInputLabel.setAttribute("id", "ccm-editor-assetfilter");
             filterInputLabel.textContent = "Filter items";
             const filterInput: HTMLInputElement = filterForm
                 .appendChild(document.createElement("input"));
-            filterInput.setAttribute("id", "ccm-editor-itemfilter");
+            filterInput.setAttribute("id", "ccm-editor-assetfilter");
             filterInput.setAttribute("type", "text");
             const applyFiltersButton: Element = filterForm
                 .appendChild(document.createElement("button"));
@@ -223,3 +223,589 @@ export class InsertInternalLinkCommand extends CCMEditorCommand {
         this.button.setAttribute("disabled", "true");
     }
 }
+
+export class InsertMediaAssetCommand extends CCMEditorCommand {
+
+    private button: HTMLElement;
+
+    private IMAGE_TYPE: string = "org.libreccm.assets.ImageAsset";
+    private VIDEO_TYPE: string = "org.libreccm.assets.VideoAsset";
+    private EXTERNAL_VIDEO_TYPE: string
+        = "org.libreccm.assets.ExternalVideoAsset";
+    private AUDIO_TYPE: string = "org.libreccm.assets.Audio";
+    private EXTERNAL_AUDIO_TYPE: string
+        = "org.libreccm.assets.ExternalAudioAsset";
+
+    constructor(editor: CCMEditor, settings: any) {
+
+        super(editor, settings);
+
+        this.button = this.fragment
+            .appendChild(document.createElement("button"));
+
+        const icon: Element = this.button
+            .appendChild(document.createElement("i"));
+        icon.className = "fa fa-file-image-o";
+
+        const text: Element = this.button
+            .appendChild(document.createElement("span"));
+        this.button.setAttribute("title",
+                                 "Insert media content (image, audio, video)");
+        text.textContent = `Insert media content like an image, a audio file or
+            a video`;
+        text.className = "ccm-editor-accessibility";
+
+        const command: InsertMediaAssetCommand = this;
+
+        this.button.addEventListener("click", function() {
+
+            event.preventDefault();
+
+            const currentRange: Range = document.getSelection().getRangeAt(0);
+
+            const dialogFragment: DocumentFragment = document
+                .createDocumentFragment();
+            const dialogElem: HTMLElement = dialogFragment
+                .appendChild(document.createElement("div"));
+            dialogElem.className = "ccm-editor-selectdialog";
+            const dialogTitleElem: Element = dialogElem
+                .appendChild(document.createElement("h1"));
+            dialogTitleElem.textContent = "Insert media";
+
+            const closeButton: HTMLButtonElement = dialogElem
+                .appendChild(document.createElement("button"));
+            closeButton.className = "ccm-editor-selectdialog-closebutton";
+            closeButton.textContent = "\u2715";
+            closeButton.addEventListener("click", function() {
+                event.preventDefault();
+                const bodyElem = document.getElementsByTagName("body").item(0);
+                bodyElem.removeChild(dialogElem);
+                document.getSelection().removeAllRanges();
+                document.getSelection().addRange(currentRange);
+            });
+
+            const filterForm: HTMLElement = dialogElem
+                .appendChild(document.createElement("div"));
+            const contentSectionSelectLabel: HTMLElement = filterForm
+                .appendChild(document.createElement("label"));
+            contentSectionSelectLabel
+                    .setAttribute("for", "ccm-editor-contentsection-select");
+            contentSectionSelectLabel.textContent
+                = "Show media assets from Content Section";
+            const contentSectionSelect: HTMLSelectElement = filterForm
+                    .appendChild(document.createElement("select"));
+            contentSectionSelect
+                    .setAttribute("id", "ccm-editor-contentsection-select");
+            const typeSelectLabel: HTMLElement = filterForm
+                .appendChild(document.createElement("label"));
+            typeSelectLabel.setAttribute("for", "ccm-editor-assettype-select");
+            typeSelectLabel.textContent = "Type";
+            const typeSelect: HTMLSelectElement = filterForm
+                .appendChild(document.createElement("select"));
+            typeSelect.setAttribute("id", "ccm-editor-assettype-select");
+            const typeSelectOptions = [
+                {
+                    type: command.IMAGE_TYPE,
+                    label: "Image",
+                },
+                {
+                    type: command.VIDEO_TYPE,
+                    label: "Video",
+                },
+                {
+                    type: command.EXTERNAL_VIDEO_TYPE,
+                    label: "External Video",
+                },
+                {
+                    type: command.AUDIO_TYPE,
+                    label: "Audio file",
+                },
+                {
+                    type: command.EXTERNAL_AUDIO_TYPE,
+                    label: "External Audio file",
+                },
+            ];
+            for (const typeOption of typeSelectOptions) {
+                const option: HTMLElement = document.createElement("option");
+                option.setAttribute("value", typeOption.type);
+                option.textContent = typeOption.label
+                typeSelect.appendChild(option);
+            }
+            const filterInputLabel: Element = filterForm
+                .appendChild(document.createElement("label"));
+            filterInputLabel.setAttribute("id", "ccm-editor-assetfilter");
+            filterInputLabel.textContent = "Filter items";
+            const filterInput: HTMLInputElement = filterForm
+                .appendChild(document.createElement("input"));
+            filterInput.setAttribute("id", "ccm-editor-assetfilter");
+            filterInput.setAttribute("type", "text");
+            const applyFiltersButton: Element = filterForm
+                .appendChild(document.createElement("button"));
+            applyFiltersButton.textContent = "Clear filters";
+
+            const clearFiltersButton: Element = filterForm
+                .appendChild(document.createElement("button"));
+            clearFiltersButton.textContent = "Clear filters";
+            clearFiltersButton.addEventListener("click", function(event){
+                event.preventDefault();
+                filterInput.value = "";
+            });
+
+            const table: HTMLElement = dialogElem
+                .appendChild(document.createElement("table"));
+            const tableHead: HTMLElement = table
+                .appendChild(document.createElement("thead"));
+            const headerRow: HTMLElement = tableHead
+                .appendChild(document.createElement("tr"));
+            const titleColHeader: HTMLElement = headerRow
+                .appendChild(document.createElement("th"));
+            const typeColHeader: Element = headerRow
+                    .appendChild(document.createElement("th"));
+            const placeColHeader: Element = headerRow
+                    .appendChild(document.createElement("th"));
+            titleColHeader.textContent = "Title";
+            typeColHeader.textContent = "Type";
+            placeColHeader.textContent = "Place";
+            const tableBody: HTMLElement = table
+                .appendChild(document.createElement("tbody"));
+
+            const contextPrefix = editor.getDataAttribute("content-prefix");
+            // Get content sections
+            const currentSection = editor
+                .getDataAttribute("current-contentsection-primaryurl");
+            const sectionsUrl = contextPrefix + "/content-sections/";
+            fetch(sectionsUrl, { credentials: "include" }).then((response) => {
+
+                if (response.ok) {
+                    response.json().then((data) => {
+                        for(const section of data) {
+                            const option: HTMLElement = contentSectionSelect
+                                .appendChild(document.createElement("option"));
+                            option.setAttribute("value", section.primaryUrl);
+                            option.textContent = section.primaryUrl;
+                            if (section.primaryUrl === currentSection) {
+                                option.setAttribute("selected", "selected");
+                            }
+                        }
+                    });
+                }
+            });
+
+            contentSectionSelect.addEventListener("change", (event) => {
+                event.preventDefault();
+                command.fetchAssets(dialogElem,
+                                    contentSectionSelect,
+                                    typeSelect,
+                                    filterInput,
+                                    tableBody,
+                                    currentRange);
+            });
+            typeSelect.addEventListener("change", (event) => {
+                event.preventDefault();
+                command.fetchAssets(dialogElem,
+                                    contentSectionSelect,
+                                    typeSelect,
+                                    filterInput,
+                                    tableBody,
+                                    currentRange);
+            });
+            applyFiltersButton.addEventListener("click", (event) => {
+                event.preventDefault();
+                command.fetchAssets(dialogElem,
+                                    contentSectionSelect,
+                                    typeSelect,
+                                    filterInput,
+                                    tableBody,
+                                    currentRange);
+            });
+        });
+    }
+
+    private fetchAssets(dialogElem: HTMLElement,
+                        contentSectionSelect: HTMLSelectElement,
+                        typeSelect: HTMLSelectElement,
+                        filterField: HTMLInputElement,
+                        resultsTableBody: HTMLElement,
+                        currentRange: Range): void {
+
+        const assetsUrl = this.buildAssetsUrl(contentSectionSelect.value,
+                                              typeSelect.value,
+                                              filterField.value);
+
+        fetch(assetsUrl, { credentials: "include" }).then((response) => {
+
+            if (response.ok) {
+                response.json().then((data) => {
+
+                    resultsTableBody.innerHTML = "";
+
+                    for(const asset of data) {
+                        const row: HTMLElement = resultsTableBody
+                            .appendChild(document.createElement("tr"));
+                        const dataTitle: HTMLElement = row
+                            .appendChild(document.createElement("td"));
+                        const dataType: HTMLElement = row
+                            .appendChild(document.createElement("td"));
+                        const dataPlace = row
+                            .appendChild(document.createElement("td"));
+
+                        const selectAssetButton = dataTitle
+                            .appendChild(document.createElement("button"));
+                        selectAssetButton.textContent = asset.title;
+
+                        selectAssetButton
+                            .addEventListener("click", event => {
+                                event.preventDefault();
+
+                                this.insertMedia(
+                                    dialogElem,
+                                    this.editor
+                                        .getDataAttribute("content-prefix"),
+                                    contentSectionSelect.value,
+                                    asset.uuid,
+                                    asset.title,
+                                    asset.type,
+                                    asset.typeLabel,
+                                    currentRange);
+                            });
+
+                        dataType.textContent = asset.typeLabel;
+                        dataType.textContent = asset.place;
+                    }
+                },
+                (failure) => {
+                    const errorMsgElement = document.createElement("div");
+                    errorMsgElement.classList.add("ccm-editor-error");
+                    errorMsgElement.textContent = `Failed to fetch assets from
+                    ${assetsUrl}: ${failure}`;
+                    resultsTableBody.parentNode.parentNode
+                        .insertBefore(errorMsgElement,
+                                      resultsTableBody.parentNode);
+                });
+            } else {
+                const errorMsgElement = document.createElement("div");
+                errorMsgElement.classList.add("ccm-editor-error");
+                errorMsgElement.textContent = `Failed to fetch assets from
+                ${assetsUrl}. Status code: ${response.status}.
+                Status text: ${response.statusText}`;
+                resultsTableBody.parentNode.parentNode
+                    .insertBefore(errorMsgElement, resultsTableBody.parentNode);
+            }
+        },
+        (failure) => {
+            const errorMsgElement = document.createElement("div");
+            errorMsgElement.classList.add("ccm-editor-error");
+            errorMsgElement.textContent = `Failed to fetch assets from
+            ${assetsUrl}: ${failure}`;
+            resultsTableBody.parentNode.parentNode
+                .insertBefore(errorMsgElement, resultsTableBody.parentNode);
+        });
+    }
+
+    private buildAssetsUrl(contentSection: string,
+                           type: string,
+                           query?: string): string {
+        const contextPrefix = this.editor.getDataAttribute("content-prefix");
+
+        let url: string = `${contextPrefix}/content-sections`;
+        if (!(new RegExp("^/.*").test(contentSection))) {
+            url = `${url}/`;
+        }
+        url = `${url}${contentSection}`;
+        if (!(new RegExp(".*/$").test(url))) {
+            url = `${url}/`
+        }
+        if (query) {
+            url = `${url}?query=${query}`;
+        }
+
+        return url;
+    }
+
+    private insertMedia(selectDialogElem: HTMLElement,
+                        contextPrefix: string,
+                        contentSection: string,
+                        assetUuid: string,
+                        assetTitle: string,
+                        assetType: string,
+                        assetTypeLabel: string,
+                        currentRange: Range): void {
+
+        selectDialogElem.setAttribute("style", "display: none");
+
+        const dialogId: string = "ccm-editor-insertmedia";
+        const captionFieldId: string = `${dialogId}-caption`;
+        const altFieldId: string = `${dialogId}-alt`;
+        const decorativeCheckboxId: string
+            = `${dialogId}-isdecorative`;
+        const widthFieldId: string = `${dialogId}-width`;
+        const heightFieldId: string = `${dialogId}-height`;
+
+        const fragment: DocumentFragment = document.createDocumentFragment();
+        const insertDialogElem: HTMLElement = fragment
+            .appendChild(document.createElement("div"));
+        insertDialogElem.classList.add("ccm-editor-dialog");
+        insertDialogElem.id = dialogId;
+
+        const headingElem: HTMLElement = insertDialogElem
+            .appendChild(document.createElement("h1"));
+        headingElem.textContent = `Insert media asset "${assetTitle}" of
+            type ${assetTypeLabel}`;
+
+        const formElem: HTMLElement = insertDialogElem
+            .appendChild(document.createElement("form"));
+
+        const captionLabel: HTMLLabelElement = formElem
+            .appendChild(document.createElement("label"));
+        captionLabel.htmlFor = captionFieldId;
+        captionLabel.textContent = "Caption";
+        const captionField: HTMLInputElement = formElem
+            .appendChild(document.createElement("input"));
+        captionField.id = captionFieldId;
+        captionField.type = "text";
+
+        if (this.IMAGE_TYPE === assetType) {
+
+            const altLabel: HTMLLabelElement = formElem
+                .appendChild(document.createElement("label"));
+            altLabel.htmlFor = altFieldId;
+            altLabel.textContent = "Alternativ text for image";
+            const altField: HTMLInputElement = formElem
+                .appendChild(document.createElement("input"));
+            altField.type = "text";
+            altField.id = altFieldId;
+
+            const decorativeLabel: HTMLLabelElement = formElem
+                .insertBefore(document.createElement("label"), captionLabel);
+            decorativeLabel.htmlFor = decorativeCheckboxId;
+            decorativeLabel.textContent = "Is decorative image?";
+            const decorativeCheckbox: HTMLInputElement = formElem
+                .insertBefore(document.createElement("input"), captionLabel);
+            decorativeCheckbox.id = decorativeCheckboxId;
+            decorativeCheckbox.type = "checkbox";
+
+            decorativeCheckbox.addEventListener("change", (event) => {
+                if (decorativeCheckbox.checked) {
+                    captionLabel.setAttribute("style", "display: none");
+                    captionField.setAttribute("style", "display: none");
+                    captionField.value = "";
+
+                    altLabel.setAttribute("style", "display: none");
+                    altField.setAttribute("style", "display: none");
+                    altField.value = "";
+                } else {
+                    captionLabel.removeAttribute("style");
+                    captionField.removeAttribute("style");
+                    altLabel.removeAttribute("style");
+                    altField.removeAttribute("style");
+                }
+            });
+
+            if (this.IMAGE_TYPE === assetType
+                || this.VIDEO_TYPE === assetType
+                || this.EXTERNAL_VIDEO_TYPE === assetType) {
+
+                const widthLabel: HTMLLabelElement = formElem
+                    .appendChild(document.createElement("label"));
+                widthLabel.htmlFor = widthFieldId;
+                widthLabel.textContent = "Width";
+                const widthField: HTMLInputElement = formElem
+                    .appendChild(document.createElement("input"));
+                widthField.id = widthFieldId;
+                widthField.type = "number";
+
+                const heightLabel: HTMLLabelElement = formElem
+                    .appendChild(document.createElement("label"));
+                heightLabel.htmlFor = heightFieldId;
+                heightLabel.textContent = "height";
+                const heightField: HTMLInputElement = formElem
+                    .appendChild(document.createElement("input"));
+                heightField.id = heightFieldId;
+                heightField.type = "number";
+            }
+
+            const insertButton: HTMLButtonElement = formElem
+                .appendChild(document.createElement("button"));
+            insertButton.textContent = "insert";
+            insertButton.addEventListener("click", (event) => {
+                event.preventDefault();
+
+                const captionField: HTMLInputElement = document
+                    .getElementById(captionFieldId) as HTMLInputElement;
+                let mediaHtml: string;
+                switch(assetType) {
+                    case this.AUDIO_TYPE: {
+                        mediaHtml = this
+                            .generateAudioHtml("0", captionField.value);
+                    }
+                    case this.EXTERNAL_AUDIO_TYPE: {
+                        mediaHtml = this
+                            .generateAudioHtml("0", captionField.value);
+                    }
+                    case this.EXTERNAL_VIDEO_TYPE: {
+                        const widthField: HTMLInputElement = document
+                            .getElementById(widthFieldId) as HTMLInputElement;
+                        const heightField: HTMLInputElement = document
+                                .getElementById(widthFieldId) as
+                            HTMLInputElement;
+                        mediaHtml = this
+                            .generateVideoHtml("0",
+                                               captionField.value,
+                                               Number(widthField.value),
+                                               Number(heightField.value));
+                    }
+                    case this.IMAGE_TYPE: {
+                        const altField: HTMLInputElement = document
+                            .getElementById(altFieldId) as HTMLInputElement;
+                        const widthField: HTMLInputElement = document
+                            .getElementById(widthFieldId) as HTMLInputElement;
+                        const heightField: HTMLInputElement = document
+                                .getElementById(widthFieldId) as
+                                HTMLInputElement;
+                        const imageUrl: string = this
+                            .generateImageUrl(contextPrefix,
+                                              contentSection,
+                                              assetUuid);
+
+                        if (decorativeCheckbox.checked) {
+                            mediaHtml = this
+                                .generateDecorativeImageHtml(
+                                    imageUrl,
+                                    Number(widthField.value),
+                                    Number(heightField.value));
+                        } else {
+                            mediaHtml = this
+                                .generateImageHtml(imageUrl,
+                                                  captionField.value,
+                                                  altField.value,
+                                                  Number(widthField.value),
+                                                  Number(heightField.value));
+                        }
+                    }
+                    case this.VIDEO_TYPE: {
+                        const widthField: HTMLInputElement = document
+                            .getElementById(widthFieldId) as HTMLInputElement;
+                        const heightField: HTMLInputElement = document
+                                .getElementById(widthFieldId) as
+                            HTMLInputElement;
+                        mediaHtml = this
+                            .generateVideoHtml("0",
+                                               captionField.value,
+                                               Number(widthField.value),
+                                               Number(heightField.value));
+                    }
+                    default:
+                        mediaHtml = "";
+                }
+
+                document.getSelection().removeAllRanges();
+                document.getSelection().addRange(currentRange);
+                document.execCommand("insertHTML", false, mediaHtml);
+
+                const bodyElem = document.getElementsByTagName("body").item(0);
+                bodyElem.removeChild(insertDialogElem);
+                bodyElem.removeChild(selectDialogElem);
+            });
+
+            const cancelButton: HTMLButtonElement = formElem
+                .appendChild(document.createElement("button"));
+            cancelButton.textContent = "Cancel";
+            cancelButton.addEventListener("click", (event) => {
+                event.preventDefault();
+
+                const bodyElem = document.getElementsByTagName("body").item(0);
+                bodyElem.removeChild(insertDialogElem);
+                selectDialogElem.removeAttribute("style");
+            });
+        }
+    }
+
+    private generateDecorativeImageHtml(imageUrl: string,
+                            width: number = -1,
+                            height: number = -1): string {
+
+        let dimensions: string;
+        if (width > 0) {
+            dimensions = `${dimensions} width="${width}"`;
+        }
+        if (height > 0) {
+            dimensions = `${dimensions} height="${height}"`;
+        }
+
+        return `<img src="${imageUrl}" ${dimensions} alt="" />`;
+    }
+
+    private generateImageHtml(imageUrl: string,
+                              caption: string,
+                              alt: string,
+                              width: number = -1,
+                              height: number = -1): string {
+
+        let dimensions: string;
+        if (width > 0) {
+            dimensions = `${dimensions} width="${width}"`;
+        }
+        if (height > 0) {
+            dimensions = `${dimensions} height="${height}"`;
+        }
+
+        return `<figure role="group">
+            <img src="${imageUrl}" ${dimensions} alt="${alt}" />
+            <figcaption>${caption}</figcaption>
+        </figure>`
+    }
+
+    private generateImageUrl(contextPrefix: string,
+                             contentSection: string,
+                             assetUuid: string,
+                             width: number = -1,
+                             height: number = -1): string {
+
+        let imageUrl: string = `${contextPrefix}/content-sections`;
+        if (!(new RegExp("^/.*").test(contentSection))) {
+            imageUrl = `${imageUrl}/`;
+        }
+        imageUrl = `${imageUrl}{$contentSection}`;
+        if (!(new RegExp(".*/$").test(contentSection))) {
+            imageUrl = `${imageUrl}/`;
+        }
+        return `${imageUrl}/images/uuid-${assetUuid}
+        ?width=${width}&height=${height}`;
+    }
+
+    private generateVideoHtml(videoUrl: string,
+                              caption: string,
+                              width: number = -1,
+                              height: number = -1): string {
+
+        return `<figure role="group">
+            <span>Not implemented yet</span>
+            <figcaption>${caption}</figcaption>
+        </figure>`;
+    }
+
+    private generateAudioHtml(audioUrl: string, caption: string): string {
+
+        return `<figure role="group">
+            <span>Not implemented yet</span>
+            <figcaption>${caption}</figcaption>
+        </figure>`;
+    }
+
+    getCommandType(): CCMEditorCommandType {
+        return CCMEditorCommandType.INSERT_INLINE;
+    }
+
+    selectionChanged(selection: Selection) {
+
+    }
+
+    enableCommand(): void {
+        this.button.removeAttribute("disabled");
+    }
+
+    disableCommand(): void {
+        this.button.setAttribute("disabled", "disabled");
+    }
+
+}