From b5b5b4af0c390a9246e0ef6051b95af1c5e40297 Mon Sep 17 00:00:00 2001
From: Phil Hughes <me@iamphill.com>
Date: Fri, 12 May 2017 15:52:45 +0100
Subject: [PATCH] Added description field to inline edit form

[ci skip]
---
 app/assets/javascripts/dropzone_input.js      |   3 +-
 .../javascripts/issue_show/components/app.vue |  25 ++---
 .../issue_show/components/description.vue     |  55 +++++++---
 .../components/fields/description.vue         |  40 +++++++
 app/assets/javascripts/issue_show/index.js    |   4 +-
 .../javascripts/issue_show/stores/index.js    |   1 +
 .../vue_shared/components/markdown/field.vue  | 102 ++++++++++++++++++
 .../vue_shared/components/markdown/header.vue |  97 +++++++++++++++++
 .../components/markdown/toolbar.vue           |  26 +++++
 .../components/markdown/toolbar_button.vue    |  48 +++++++++
 app/views/projects/issues/show.html.haml      |   1 +
 11 files changed, 372 insertions(+), 30 deletions(-)
 create mode 100644 app/assets/javascripts/issue_show/components/fields/description.vue
 create mode 100644 app/assets/javascripts/vue_shared/components/markdown/field.vue
 create mode 100644 app/assets/javascripts/vue_shared/components/markdown/header.vue
 create mode 100644 app/assets/javascripts/vue_shared/components/markdown/toolbar.vue
 create mode 100644 app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue

diff --git a/app/assets/javascripts/dropzone_input.js b/app/assets/javascripts/dropzone_input.js
index b3a76fbb43e..3843539a3b8 100644
--- a/app/assets/javascripts/dropzone_input.js
+++ b/app/assets/javascripts/dropzone_input.js
@@ -142,7 +142,8 @@ window.DropzoneInput = (function() {
       $(child).val(beforeSelection + formattedText + afterSelection);
       textarea.setSelectionRange(caretStart + formattedText.length, caretEnd + formattedText.length);
       textarea.style.height = `${textarea.scrollHeight}px`;
-      return form_textarea.trigger("input");
+      form_textarea.trigger("input");
+      form_textarea.get(0).dispatchEvent(new Event('input'));
     };
     getFilename = function(e) {
       var value;
diff --git a/app/assets/javascripts/issue_show/components/app.vue b/app/assets/javascripts/issue_show/components/app.vue
index 5c253bfd0c1..695d849e017 100644
--- a/app/assets/javascripts/issue_show/components/app.vue
+++ b/app/assets/javascripts/issue_show/components/app.vue
@@ -41,8 +41,8 @@ export default {
       required: false,
       default: '',
     },
-    showForm: {
-      type: Boolean,
+    markdownPreviewUrl: {
+      type: String,
       required: true,
     },
   },
@@ -71,6 +71,13 @@ export default {
     editActions,
   },
   methods: {
+    openForm() {
+      this.showForm = true;
+      this.store.formState = {
+        title: this.state.titleText,
+        description: this.state.descriptionText,
+      };
+    },
     updateIssuable() {
       this.service.updateIssuable(this.formState)
         .then(() => {
@@ -96,14 +103,6 @@ export default {
         });
     },
   },
-  methods: {
-    openForm() {
-      this.showForm = true;
-      this.store.formState = {
-        title: this.state.titleText,
-      };
-    },
-  },
   created() {
     this.service = new Service(this.endpoint);
     this.poll = new Poll({
@@ -150,12 +149,14 @@ export default {
       :title-html="state.titleHtml"
       :title-text="state.titleText" />
     <description-component
-      v-if="state.descriptionHtml"
+      :store="store"
+      :show-form="showForm"
       :can-update="canUpdate"
       :description-html="state.descriptionHtml"
       :description-text="state.descriptionText"
       :updated-at="state.updatedAt"
-      :task-status="state.taskStatus" />
+      :task-status="state.taskStatus"
+      :markdown-preview-url="markdownPreviewUrl" />
     <edit-actions
       v-if="canUpdate && showForm"
       :can-destroy="canDestroy" />
diff --git a/app/assets/javascripts/issue_show/components/description.vue b/app/assets/javascripts/issue_show/components/description.vue
index 4ad3eb7dfd7..b7a0a1bf7e4 100644
--- a/app/assets/javascripts/issue_show/components/description.vue
+++ b/app/assets/javascripts/issue_show/components/description.vue
@@ -1,5 +1,6 @@
 <script>
   import animateMixin from '../mixins/animate';
+  import descriptionField from './fields/description.vue';
 
   export default {
     mixins: [animateMixin],
@@ -24,6 +25,18 @@
         type: String,
         required: true,
       },
+      store: {
+        type: Object,
+        required: true,
+      },
+      showForm: {
+        type: Boolean,
+        required: true,
+      },
+      markdownPreviewUrl: {
+        type: String,
+        required: true,
+      },
     },
     data() {
       return {
@@ -75,6 +88,9 @@
         }
       },
     },
+    components: {
+      descriptionField,
+    },
     mounted() {
       this.renderGFM();
     },
@@ -82,24 +98,31 @@
 </script>
 
 <template>
-  <div
-    class="description"
-    :class="{
-      'js-task-list-container': canUpdate
-    }">
+  <div :class="{ 'common-note-form': showForm }">
+    <description-field
+      v-if="showForm"
+      :store="store"
+      :markdown-preview-url="markdownPreviewUrl" />
     <div
-      class="wiki"
+      v-else-if="descriptionHtml"
+      class="description"
       :class="{
-        'issue-realtime-pre-pulse': preAnimation,
-        'issue-realtime-trigger-pulse': pulseAnimation
-      }"
-      v-html="descriptionHtml"
-      ref="gfm-content">
+        'js-task-list-container': canUpdate
+      }">
+      <div
+        class="wiki"
+        :class="{
+          'issue-realtime-pre-pulse': preAnimation,
+          'issue-realtime-trigger-pulse': pulseAnimation
+        }"
+        v-html="descriptionHtml"
+        ref="gfm-content">
+      </div>
+      <textarea
+        class="hidden js-task-list-field"
+        v-if="descriptionText"
+        v-model="descriptionText">
+      </textarea>
     </div>
-    <textarea
-      class="hidden js-task-list-field"
-      v-if="descriptionText"
-      v-model="descriptionText">
-    </textarea>
   </div>
 </template>
diff --git a/app/assets/javascripts/issue_show/components/fields/description.vue b/app/assets/javascripts/issue_show/components/fields/description.vue
new file mode 100644
index 00000000000..d131c0d75ea
--- /dev/null
+++ b/app/assets/javascripts/issue_show/components/fields/description.vue
@@ -0,0 +1,40 @@
+<script>
+  /* global Flash */
+  import markdownField from '../../../vue_shared/components/markdown/field.vue';
+
+  export default {
+    props: {
+      store: {
+        type: Object,
+        required: true,
+      },
+      markdownPreviewUrl: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return {
+        state: this.store.formState,
+      };
+    },
+    components: {
+      markdownField,
+    },
+  };
+</script>
+
+<template>
+  <div>
+    <markdown-field
+      :markdown-preview-url="markdownPreviewUrl">
+      <textarea
+        class="note-textarea js-gfm-input js-autosize markdown-area"
+        data-supports-slash-commands="false"
+        v-model="state.description"
+        ref="textatea"
+        slot="textarea">
+      </textarea>
+    </markdown-field>
+  </div>
+</template>
diff --git a/app/assets/javascripts/issue_show/index.js b/app/assets/javascripts/issue_show/index.js
index 58a8d0590e1..77c77237647 100644
--- a/app/assets/javascripts/issue_show/index.js
+++ b/app/assets/javascripts/issue_show/index.js
@@ -25,6 +25,7 @@ document.addEventListener('DOMContentLoaded', () => {
         canDestroy,
         endpoint,
         issuableRef,
+        markdownPreviewUrl,
       } = issuableElement.dataset;
 
       return {
@@ -35,6 +36,7 @@ document.addEventListener('DOMContentLoaded', () => {
         initialTitle: issuableTitleElement.innerHTML,
         initialDescriptionHtml: issuableDescriptionElement ? issuableDescriptionElement.innerHTML : '',
         initialDescriptionText: issuableDescriptionTextarea ? issuableDescriptionTextarea.textContent : '',
+        markdownPreviewUrl,
       };
     },
     render(createElement) {
@@ -47,7 +49,7 @@ document.addEventListener('DOMContentLoaded', () => {
           initialTitle: this.initialTitle,
           initialDescriptionHtml: this.initialDescriptionHtml,
           initialDescriptionText: this.initialDescriptionText,
-          showForm: this.showForm,
+          markdownPreviewUrl: this.markdownPreviewUrl,
         },
       });
     },
diff --git a/app/assets/javascripts/issue_show/stores/index.js b/app/assets/javascripts/issue_show/stores/index.js
index 0ab52c307a0..3232875000d 100644
--- a/app/assets/javascripts/issue_show/stores/index.js
+++ b/app/assets/javascripts/issue_show/stores/index.js
@@ -14,6 +14,7 @@ export default class Store {
     };
     this.formState = {
       title: '',
+      description: '',
     };
   }
 
diff --git a/app/assets/javascripts/vue_shared/components/markdown/field.vue b/app/assets/javascripts/vue_shared/components/markdown/field.vue
new file mode 100644
index 00000000000..d0424a18579
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/markdown/field.vue
@@ -0,0 +1,102 @@
+<script>
+  /* global Flash */
+  import markdownHeader from './header.vue';
+  import markdownToolbar from './toolbar.vue';
+
+  export default {
+    props: {
+      markdownPreviewUrl: {
+        type: String,
+        required: false,
+        default: '',
+      },
+    },
+    data() {
+      return {
+        markdownPreview: '',
+        markdownPreviewLoading: false,
+        previewMarkdown: false,
+      };
+    },
+    components: {
+      markdownHeader,
+      markdownToolbar,
+    },
+    methods: {
+      toggleMarkdownPreview() {
+        this.previewMarkdown = !this.previewMarkdown;
+
+        if (!this.previewMarkdown) {
+          this.markdownPreview = '';
+        } else {
+          this.markdownPreviewLoading = true;
+          this.$http.post(
+            this.markdownPreviewUrl,
+            {
+              /*
+                Can't use `$refs` as the component is technically in the parent component
+                so we access the VNode & then get the element
+              */
+              text: this.$slots.textarea[0].elm.value,
+            },
+          )
+          .then((res) => {
+            const data = res.json();
+
+            this.markdownPreviewLoading = false;
+            this.markdownPreview = data.body;
+
+            this.$nextTick(() => {
+              $(this.$refs['markdown-preview']).renderGFM();
+            });
+          })
+          .catch(() => new Flash('Error loading markdown preview'));
+        }
+      },
+    },
+    mounted() {
+      /*
+        GLForm class handles all the toolbar buttons etc.
+      */
+      return new gl.GLForm($(this.$refs['gl-form']));
+    },
+  };
+</script>
+
+<template>
+  <div
+    class="md-area prepend-top-default append-bottom-default"
+    ref="gl-form">
+    <markdown-header
+      :preview-markdown="previewMarkdown"
+      @toggle-markdown="toggleMarkdownPreview" />
+    <div
+      class="md-write-holder"
+      v-show="!previewMarkdown">
+      <div class="zen-backdrop">
+        <slot name="textarea"></slot>
+        <a
+          class="zen-control zen-control-leave js-zen-leave"
+          href="#"
+          aria-label="Enter zen mode">
+          <i
+            class="fa fa-compress"
+            aria-hidden="true">
+          </i>
+        </a>
+        <markdown-toolbar />
+      </div>
+    </div>
+    <div
+      class="md md-preview-holder md-preview"
+      v-show="previewMarkdown">
+      <div
+        ref="markdown-preview"
+        v-html="markdownPreview">
+      </div>
+      <span v-if="markdownPreviewLoading">
+        Loading...
+      </span>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/vue_shared/components/markdown/header.vue b/app/assets/javascripts/vue_shared/components/markdown/header.vue
new file mode 100644
index 00000000000..4c9f112a2ab
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/markdown/header.vue
@@ -0,0 +1,97 @@
+<script>
+  import toolbarButton from './toolbar_button.vue';
+
+  export default {
+    props: {
+      previewMarkdown: {
+        type: Boolean,
+        required: true,
+      },
+    },
+    components: {
+      toolbarButton,
+    },
+    methods: {
+      toggleMarkdownPreview(e) {
+        e.target.blur();
+
+        this.$emit('toggle-markdown');
+      },
+    },
+  };
+</script>
+
+<template>
+  <div class="md-header">
+    <ul class="nav-links clearfix">
+      <li :class="{ active: !previewMarkdown }">
+        <a
+          href="#md-write-holder"
+          tabindex="-1"
+          @click.prevent="toggleMarkdownPreview($event)">
+          Write
+        </a>
+      </li>
+      <li :class="{ active: previewMarkdown }">
+        <a
+          href="#md-preview-holder"
+          tabindex="-1"
+          @click.prevent="toggleMarkdownPreview($event)">
+          Preview
+        </a>
+      </li>
+      <li class="pull-right">
+        <div class="toolbar-group">
+          <toolbar-button
+            tag="**"
+            button-title="Add bold text"
+            icon="bold" />
+          <toolbar-button
+            tag="*"
+            button-title="Add italic text"
+            icon="italic" />
+          <toolbar-button
+            tag="> "
+            :prepend="true"
+            button-title="Insert a quote"
+            icon="quote-right" />
+          <toolbar-button
+            tag="`"
+            tag-block="```"
+            button-title="Insert code"
+            icon="code" />
+          <toolbar-button
+            tag="* "
+            :prepend="true"
+            button-title="Add a bullet list"
+            icon="list-ul" />
+          <toolbar-button
+            tag="1. "
+            :prepend="true"
+            button-title="Add a numbered list"
+            icon="list-ol" />
+          <toolbar-button
+            tag="* [ ] "
+            :prepend="true"
+            button-title="Add a task list"
+            icon="check-square-o" />
+        </div>
+        <div class="toolbar-group">
+          <button
+            aria-label="Go full screen"
+            class="toolbar-btn js-zen-enter"
+            data-container="body"
+            tabindex="-1"
+            data-toggle="tooltip"
+            title="Go full screen"
+            type="button">
+            <i
+              aria-hidden="true"
+              class="fa fa-arrows-alt fa-fw">
+            </i>
+          </button>
+        </div>
+      </li>
+    </ul>
+  </div>
+</template>
diff --git a/app/assets/javascripts/vue_shared/components/markdown/toolbar.vue b/app/assets/javascripts/vue_shared/components/markdown/toolbar.vue
new file mode 100644
index 00000000000..47f41ba4c03
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/markdown/toolbar.vue
@@ -0,0 +1,26 @@
+<script>
+
+</script>
+
+<template>
+  <div class="comment-toolbar clearfix">
+    <div class="toolbar-text">
+      <a
+        href="/docs"
+        target="_blank"
+        tabindex="-1">
+        Markdown is supported
+      </a>
+    </div>
+    <button
+      class="toolbar-button markdown-selector"
+      type="button"
+      tabindex="-1">
+      <i
+        class="fa fa-file-image-o toolbar-button-icon"
+        aria-hidden="true">
+      </i>
+      Attach a file
+    </button>
+  </div>
+</template>
diff --git a/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue b/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue
new file mode 100644
index 00000000000..c87a3c1e910
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/markdown/toolbar_button.vue
@@ -0,0 +1,48 @@
+<script>
+  export default {
+    props: {
+      buttonTitle: {
+        type: String,
+        required: true,
+      },
+      icon: {
+        type: String,
+        required: true,
+      },
+      tag: {
+        type: String,
+        required: true,
+      },
+      tagBlock: {
+        type: String,
+        required: false,
+        default: '',
+      },
+      prepend: {
+        type: Boolean,
+        required: false,
+        default: false,
+      },
+    },
+  };
+</script>
+
+<template>
+  <button
+    type="button"
+    class="toolbar-btn js-md hidden-xs"
+    tabindex="-1"
+    :data-md-tag="tag"
+    :data-md-block="tagBlock"
+    :data-md-prepend="prepend"
+    data-container="body"
+    data-toggle="tooltip"
+    :title="buttonTitle"
+    :aria-label="buttonTitle">
+    <i
+      aria-hidden="true"
+      class="fa fa-fw"
+      :class="'fa-' + icon">
+    </i>
+  </button>
+</template>
diff --git a/app/views/projects/issues/show.html.haml b/app/views/projects/issues/show.html.haml
index d0783009a58..a552771d167 100644
--- a/app/views/projects/issues/show.html.haml
+++ b/app/views/projects/issues/show.html.haml
@@ -55,6 +55,7 @@
       "can-update" => can?(current_user, :update_issue, @issue).to_s,
       "can-destroy" => can?(current_user, :destroy_issue, @issue).to_s,
       "issuable-ref" => @issue.to_reference,
+      "markdown-preview-url" => preview_markdown_path(@project),
     } }
       %h2.title= markdown_field(@issue, :title)
       - if @issue.description.present?