Clean legacy SimpleMDE code (#17926)

Since we are using EasyMDE now, we do not need to keep the SimpleMDE code anymore.

This PR removes all legacy SimpleMDE code, and makes some related changes:
* `createCommentEasyMDE` can accept native DOM element, and it doesn't need `jQuery.data` to store EasyMDE editor object (as discussed about the frontend guideline).
* introduce `getAttachedEasyMDE` to get the attached EasyMDE editor object, it's easier to find all the usage of EasyMDE.
* rename variable names from `$simplemde` to `easyMDE`, the `$` was incorrect because it is a EasyMDE editor, not a jQuery object.

With this PR, it will be easier to do more refactoring or replacing EasyMDE with other editors.

7 files changed, 19 insertions, 19 deletions

diff --git a/routers/web/repo/commit.go b/routers/web/repo/commit.go
index ef21017a31..5bc9f9eae9 100644
--- a/routers/web/repo/commit.go
+++ b/routers/web/repo/commit.go
@@ -253,7 +253,7 @@ func FileHistory(ctx *context.Context) {
 func Diff(ctx *context.Context) {
 	ctx.Data["PageIsDiff"] = true
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 
 	userName := ctx.Repo.Owner.Name
diff --git a/routers/web/repo/compare.go b/routers/web/repo/compare.go
index 21311ba97c..c92624df8c 100644
--- a/routers/web/repo/compare.go
+++ b/routers/web/repo/compare.go
@@ -761,7 +761,7 @@ func CompareDiff(ctx *context.Context) {
 	ctx.Data["IsRepoToolbarCommits"] = true
 	ctx.Data["IsDiffCompare"] = true
 	ctx.Data["RequireTribute"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
 	setTemplateIfExists(ctx, pullRequestTemplateKey, nil, pullRequestTemplateCandidates)
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
diff --git a/routers/web/repo/editor.go b/routers/web/repo/editor.go
index d4fc55979c..97f097783a 100644
--- a/routers/web/repo/editor.go
+++ b/routers/web/repo/editor.go
@@ -69,7 +69,7 @@ func editFile(ctx *context.Context, isNewFile bool) {
 	ctx.Data["PageIsEdit"] = true
 	ctx.Data["IsNewFile"] = isNewFile
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	canCommit := renderCommitRights(ctx)
 
 	treePath := cleanUploadFileName(ctx.Repo.TreePath)
@@ -200,7 +200,7 @@ func editFilePost(ctx *context.Context, form forms.EditRepoFileForm, isNewFile b
 	ctx.Data["PageHasPosted"] = true
 	ctx.Data["IsNewFile"] = isNewFile
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["TreePath"] = form.TreePath
 	ctx.Data["TreeNames"] = treeNames
 	ctx.Data["TreePaths"] = treePaths
@@ -544,7 +544,7 @@ func DeleteFilePost(ctx *context.Context) {
 func UploadFile(ctx *context.Context) {
 	ctx.Data["PageIsUpload"] = true
 	ctx.Data["RequireTribute"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	upload.AddUploadContext(ctx, "repo")
 	canCommit := renderCommitRights(ctx)
 	treePath := cleanUploadFileName(ctx.Repo.TreePath)
@@ -580,7 +580,7 @@ func UploadFilePost(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.UploadRepoFileForm)
 	ctx.Data["PageIsUpload"] = true
 	ctx.Data["RequireTribute"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	upload.AddUploadContext(ctx, "repo")
 	canCommit := renderCommitRights(ctx)
 
diff --git a/routers/web/repo/issue.go b/routers/web/repo/issue.go
index df977d2c13..a5eecd0c33 100644
--- a/routers/web/repo/issue.go
+++ b/routers/web/repo/issue.go
@@ -786,7 +786,7 @@ func NewIssue(ctx *context.Context) {
 	ctx.Data["PageIsIssueList"] = true
 	ctx.Data["NewIssueChooseTemplate"] = len(ctx.IssueTemplatesFromDefaultBranch()) > 0
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 	ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
 	title := ctx.FormString("title")
@@ -959,7 +959,7 @@ func NewIssuePost(ctx *context.Context) {
 	ctx.Data["PageIsIssueList"] = true
 	ctx.Data["NewIssueChooseTemplate"] = len(ctx.IssueTemplatesFromDefaultBranch()) > 0
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
 	upload.AddUploadContext(ctx, "comment")
@@ -1144,7 +1144,7 @@ func ViewIssue(ctx *context.Context) {
 
 	ctx.Data["RequireHighlightJS"] = true
 	ctx.Data["RequireTribute"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["IsProjectsEnabled"] = ctx.Repo.CanRead(unit.TypeProjects)
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
 	upload.AddUploadContext(ctx, "comment")
diff --git a/routers/web/repo/pull.go b/routers/web/repo/pull.go
index b08f749cde..3882fdb5b1 100644
--- a/routers/web/repo/pull.go
+++ b/routers/web/repo/pull.go
@@ -701,7 +701,7 @@ func ViewPullFiles(ctx *context.Context) {
 	setCompareContext(ctx, baseCommit, commit, ctx.Repo.Owner.Name, ctx.Repo.Repository.Name)
 
 	ctx.Data["RequireHighlightJS"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 	if ctx.Data["Assignees"], err = models.GetRepoAssignees(ctx.Repo.Repository); err != nil {
 		ctx.ServerError("GetAssignees", err)
@@ -1045,7 +1045,7 @@ func CompareAndPullRequestPost(ctx *context.Context) {
 	ctx.Data["IsDiffCompare"] = true
 	ctx.Data["IsRepoToolbarCommits"] = true
 	ctx.Data["RequireTribute"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireHighlightJS"] = true
 	ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
diff --git a/routers/web/repo/release.go b/routers/web/repo/release.go
index 9bca4e6897..8478cb44ae 100644
--- a/routers/web/repo/release.go
+++ b/routers/web/repo/release.go
@@ -262,7 +262,7 @@ func LatestRelease(ctx *context.Context) {
 func NewRelease(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repo.release.new_release")
 	ctx.Data["PageIsReleaseList"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 	ctx.Data["tag_target"] = ctx.Repo.Repository.DefaultBranch
 	if tagName := ctx.FormString("tag"); len(tagName) > 0 {
@@ -296,7 +296,7 @@ func NewReleasePost(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.NewReleaseForm)
 	ctx.Data["Title"] = ctx.Tr("repo.release.new_release")
 	ctx.Data["PageIsReleaseList"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 
 	if ctx.HasError() {
@@ -415,7 +415,7 @@ func EditRelease(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repo.release.edit_release")
 	ctx.Data["PageIsReleaseList"] = true
 	ctx.Data["PageIsEditRelease"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
 	upload.AddUploadContext(ctx, "release")
@@ -454,7 +454,7 @@ func EditReleasePost(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repo.release.edit_release")
 	ctx.Data["PageIsReleaseList"] = true
 	ctx.Data["PageIsEditRelease"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 	ctx.Data["RequireTribute"] = true
 
 	tagName := ctx.Params("*")
diff --git a/routers/web/repo/wiki.go b/routers/web/repo/wiki.go
index 7db4394bab..7bce7cf11c 100644
--- a/routers/web/repo/wiki.go
+++ b/routers/web/repo/wiki.go
@@ -622,7 +622,7 @@ func WikiRaw(ctx *context.Context) {
 func NewWiki(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
 	ctx.Data["PageIsWiki"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 
 	if !ctx.Repo.Repository.HasWiki() {
 		ctx.Data["title"] = "Home"
@@ -639,7 +639,7 @@ func NewWikiPost(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.NewWikiForm)
 	ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
 	ctx.Data["PageIsWiki"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 
 	if ctx.HasError() {
 		ctx.HTML(http.StatusOK, tplWikiNew)
@@ -677,7 +677,7 @@ func NewWikiPost(ctx *context.Context) {
 func EditWiki(ctx *context.Context) {
 	ctx.Data["PageIsWiki"] = true
 	ctx.Data["PageIsWikiEdit"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 
 	if !ctx.Repo.Repository.HasWiki() {
 		ctx.Redirect(ctx.Repo.RepoLink + "/wiki")
@@ -697,7 +697,7 @@ func EditWikiPost(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.NewWikiForm)
 	ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
 	ctx.Data["PageIsWiki"] = true
-	ctx.Data["RequireSimpleMDE"] = true
+	ctx.Data["RequireEasyMDE"] = true
 
 	if ctx.HasError() {
 		ctx.HTML(http.StatusOK, tplWikiNew)