Widget _buildChatList()
{
Widget child = new Container();
if (this.widget.viewModel.messageLoading)
{
child = new GlobalLoading();
}
else
{
if (this.widget.viewModel.messageList.Count <= 0)
{
child = new BlankView("暂无聊天内容", null);
}
else
{
child = new SmartRefresher(
controller: this._refreshController,
enablePullDown: this.widget.viewModel.hasMore,
enablePullUp: false,
onRefresh: this._onRefresh,
child: ListView.builder(
padding: EdgeInsets.only(16, right: 16, bottom: 10),
physics: new AlwaysScrollableScrollPhysics(),
itemCount: this.widget.viewModel.messageList.Count,
itemBuilder: (cxt, index) => {
var messageId =
this.widget.viewModel.messageList[
this.widget.viewModel.messageList.Count - index - 1];
var messageDict = new Dictionary <string, Message>();
if (this.widget.viewModel.channelMessageDict.ContainsKey(
this.widget.viewModel.channelId))
{
messageDict =
this.widget.viewModel.channelMessageDict[this.widget.viewModel.channelId];
}
var message = new Message();
if (messageDict.ContainsKey(messageId))
{
message = messageDict[messageId];
}
return(new ChatMessage(
message
));
}
)
);
}
}
return(new Flexible(
child: new GestureDetector(
onTap: () => this._focusNode.unfocus(),
child: new Container(
color: CColors.White,
child: child
)
)
));
}
Widget _buildArticleList()
{
Widget content = new Container();
if (this.widget.viewModel.articlesLoading && this.widget.viewModel.articleList.isEmpty())
{
content = ListView.builder(
itemCount: 4,
itemBuilder: (cxt, index) => new ArticleLoading()
);
}
else if (this.widget.viewModel.articleList.Count <= 0)
{
content = new BlankView("暂无文章", true, () => {
this.widget.actionModel.startFetchArticles();
this.widget.actionModel.fetchArticles(initOffset);
});
}
else
{
content = new SmartRefresher(
controller: this._refreshController,
enablePullDown: true,
enablePullUp: this.widget.viewModel.hottestHasMore,
onRefresh: this.onRefresh,
child: ListView.builder(
physics: new AlwaysScrollableScrollPhysics(),
itemCount: this.widget.viewModel.articleList.Count,
itemBuilder: (cxt, index) => {
var articleId = this.widget.viewModel.articleList[index];
if (this.widget.viewModel.blockArticleList.Contains(articleId))
{
return(new Container());
}
var article = this.widget.viewModel.articleDict[articleId];
var fullName = "";
if (article.ownerType == OwnerType.user.ToString())
{
if (this.widget.viewModel.userDict.ContainsKey(article.userId))
{
fullName = this.widget.viewModel.userDict[article.userId].fullName;
}
}
if (article.ownerType == OwnerType.team.ToString())
{
if (this.widget.viewModel.teamDict.ContainsKey(article.teamId))
{
fullName = this.widget.viewModel.teamDict[article.teamId].name;
}
}
return(new ArticleCard(
article,
() => this.widget.actionModel.pushToArticleDetail(articleId),
() => ReportManager.showReportView(this.widget.viewModel.isLoggedIn,
articleId,
ReportType.article, this.widget.actionModel.pushToLogin,
this.widget.actionModel.pushToReport, this.widget.actionModel.pushToBlock
),
fullName,
new ObjectKey(article.id)
));
}
)
);
}
return(new NotificationListener <ScrollNotification>(
onNotification: this._onNotification,
child: new Container(
color: CColors.Background,
child: content
)
));
}
public override Widget build(BuildContext context)
{
this.widget.viewModel.articleDict.TryGetValue(key: this.widget.viewModel.articleId,
value: out this._article);
if (this.widget.viewModel.articleDetailLoading && (this._article == null || !this._article.isNotFirst))
{
return(new Container(
color: CColors.White,
child: new CustomSafeArea(
child: new Column(
children: new List <Widget> {
this._buildNavigationBar(false),
new ArticleDetailLoading()
}
)
)
));
}
if (this._article == null || this._article.channelId == null)
{
return(new Container(
color: CColors.White,
child: new CustomSafeArea(
child: new Column(
children: new List <Widget> {
this._buildNavigationBar(false),
new Flexible(
child: new BlankView("帖子不存在", "image/default-history")
)
}
)
)
));;
}
if (this._article.ownerType == "user")
{
if (this._article.userId != null &&
this.widget.viewModel.userDict.TryGetValue(this._article.userId, out this._user))
{
this._user = this.widget.viewModel.userDict[key : this._article.userId];
}
}
if (this._article.ownerType == "team")
{
if (this._article.teamId != null &&
this.widget.viewModel.teamDict.TryGetValue(this._article.teamId, out this._team))
{
this._team = this.widget.viewModel.teamDict[key : this._article.teamId];
}
}
if (this._titleHeight == 0f && this._article.title.isNotEmpty())
{
this._titleHeight = CTextUtils.CalculateTextHeight(
text: this._article.title,
textStyle: CTextStyle.H3,
MediaQuery.of(context).size.width - 16 * 2, // 16 is horizontal padding
null
) + 16; // 16 is top padding
this.setState(() => { });
}
var commentIndex = 0;
var originItems = this._article == null ? new List <Widget>() : this._buildItems(context, out commentIndex);
commentIndex = this._jumpState == _ArticleJumpToCommentState.active ? commentIndex : 0;
this._jumpState = _ArticleJumpToCommentState.Inactive;
Widget contentWidget;
//happens at the next frame after user presses the "Comment" button
//we rebuild a CenteredRefresher so that we can calculate out the comment section's position
if (this._needRebuildWithCachedCommentPosition == false && commentIndex != 0)
{
contentWidget = new CenteredRefresher(
controller: this._refreshController,
enablePullDown: false,
enablePullUp: this._article.hasMore,
onRefresh: this._onRefresh,
onNotification: this._onNotification,
children: originItems,
centerIndex: commentIndex
);
}
else
{
//happens when the page is updated or (when _needRebuildWithCachedCommentPosition is true) at the next frame after
//a CenteredRefresher is created and the comment section's position is estimated
//we use 0 or this estimated position to initiate the SmartRefresher's init scroll offset, respectively
D.assert(!this._needRebuildWithCachedCommentPosition || this._cachedCommentPosition != null);
contentWidget = new SmartRefresher(
initialOffset: this._needRebuildWithCachedCommentPosition ? this._cachedCommentPosition.Value : 0f,
controller: this._refreshController,
enablePullDown: false,
enablePullUp: this._article.hasMore,
onRefresh: this._onRefresh,
onNotification: this._onNotification,
child: ListView.builder(
physics: new AlwaysScrollableScrollPhysics(),
itemCount: originItems.Count,
itemBuilder: (cxt, index) => originItems[index]
));
if (this._needRebuildWithCachedCommentPosition)
{
this._needRebuildWithCachedCommentPosition = false;
//assume that when we jump to the comment, the title should always be shown as the header
//this assumption will fail when an article is shorter than 16 pixels in height (as referred to in _onNotification
this._controller.forward();
this._isHaveTitle = true;
}
}
var child = new Container(
color: CColors.Background,
child: new Column(
children: new List <Widget> {
this._buildNavigationBar(),
new Expanded(
child: new CustomScrollbar(
child: contentWidget
)
),
this._buildArticleTabBar()
}
)
);
return(new Container(
color: CColors.White,
child: new CustomSafeArea(
child: child
)
));
}
Widget _buildArticleList(BuildContext context)
{
Widget content;
var recommendArticleIds = this.widget.viewModel.recommendArticleIds;
if (!this._hasBeenLoadedData || this.widget.viewModel.articlesLoading && recommendArticleIds.isEmpty())
{
content = ListView.builder(
physics: new NeverScrollableScrollPhysics(),
itemCount: 6,
itemBuilder: (cxt, index) => new ArticleLoading()
);
}
else if (0 == recommendArticleIds.Count)
{
content = new Container(
padding: EdgeInsets.only(bottom: CConstant.TabBarHeight +
CCommonUtils.getSafeAreaBottomPadding(context: context)),
child: new BlankView(
"哎呀，暂无推荐文章",
"image/default-article",
true,
() => {
this.widget.actionModel.startFetchArticles();
this.widget.actionModel.fetchArticles(arg: initOffset);
}
)
);
}
else
{
content = new SmartRefresher(
controller: this._refreshController,
enablePullDown: true,
enablePullUp: this.widget.viewModel.hottestHasMore,
onRefresh: this._onRefresh,
hasBottomMargin: true,
child: ListView.builder(
physics: new AlwaysScrollableScrollPhysics(),
itemCount: recommendArticleIds.Count,
itemBuilder: (cxt, index) => {
var articleId = recommendArticleIds[index: index];
if (this.widget.viewModel.blockArticleList.Contains(item: articleId))
{
return(new Container());
}
if (!this.widget.viewModel.articleDict.ContainsKey(key: articleId))
{
return(new Container());
}
if (!this.widget.viewModel.hottestHasMore && recommendArticleIds.Count > 0 &&
index + 1 == recommendArticleIds.Count)
{
return(new EndView(hasBottomMargin: true));
}
var article = this.widget.viewModel.articleDict[key: articleId];
var fullName = "";
var userId = "";
if (article.ownerType == OwnerType.user.ToString())
{
userId = article.userId;
if (this.widget.viewModel.userDict.ContainsKey(key: article.userId))
{
fullName = this.widget.viewModel.userDict[key: article.userId].fullName
?? this.widget.viewModel.userDict[key: article.userId].name;
}
}
if (article.ownerType == OwnerType.team.ToString())
{
userId = article.teamId;
if (this.widget.viewModel.teamDict.ContainsKey(key: article.teamId))
{
fullName = this.widget.viewModel.teamDict[key: article.teamId].name;
}
}
var linkUrl = CStringUtils.JointProjectShareLink(projectId: article.id);
return(new ArticleCard(
article: article,
() => {
this.widget.actionModel.pushToArticleDetail(obj: articleId);
AnalyticsManager.ClickEnterArticleDetail("Home_Article", articleId: article.id,
articleTitle: article.title);
},
() => ShareManager.showArticleShareView(
this.widget.viewModel.currentUserId != userId,
isLoggedIn: this.widget.viewModel.isLoggedIn,
() => {
Clipboard.setData(new ClipboardData(text: linkUrl));
CustomDialogUtils.showToast("复制链接成功", iconData: Icons.check_circle_outline);
},
() => this.widget.actionModel.pushToLogin(),
() => this.widget.actionModel.pushToBlock(obj: article.id),
() => this.widget.actionModel.pushToReport(arg1: article.id,
arg2: ReportType.article),
type => {
CustomDialogUtils.showCustomDialog(
child: new CustomLoadingDialog()
);
string imageUrl = CImageUtils.SizeTo200ImageUrl(article.thumbnail.url);
this.widget.actionModel.shareToWechat(arg1: type, arg2: article.title,
arg3: article.subTitle, arg4: linkUrl, arg5: imageUrl)
.Then(onResolved: CustomDialogUtils.hiddenCustomDialog)
.Catch(_ => CustomDialogUtils.hiddenCustomDialog());
}
),
fullName: fullName,
key: new ObjectKey(value: article.id)
));
}
)
);
}
if (this.widget.viewModel.isLoggedIn)
{
return(new Container(
color: CColors.Background,
child: new CustomScrollbar(child: content)
));
}
return(new NotificationListener <ScrollNotification>(
onNotification: this._onNotification,
child: new Container(
color: CColors.Background,
child: new CustomScrollbar(child: content)
)
));
}
Widget _buildContent()
{
var followArticleIds = this.widget.viewModel.followArticleIds;
var followings = this.widget.viewModel.followings;
var hotArticleIds = this.widget.viewModel.hotArticleIds;
var followArticleLoading = this.widget.viewModel.followArticlesLoading &&
followArticleIds.isEmpty() &&
hotArticleIds.isEmpty();
var followingLoading = this.widget.viewModel.followingLoading &&
followings.isEmpty();
Widget content;
if (followArticleLoading || followingLoading)
{
content = new FollowArticleLoading();
}
else if (followArticleIds.isEmpty())
{
var itemCount = followings.isEmpty()
? hotArticleIds.Count
: hotArticleIds.Count + 1;
if (!this.widget.viewModel.hotArticleHasMore)
{
itemCount = itemCount + 1;
}
content = new SmartRefresher(
controller: this._refreshController,
enablePullDown: true,
enablePullUp: this.widget.viewModel.hotArticleHasMore,
onRefresh: up => this._onRefresh(up: up, true),
child: ListView.builder(
physics: new AlwaysScrollableScrollPhysics(),
itemCount: itemCount,
itemBuilder: (cxt, index) => this._buildFollowArticleCard(context: cxt, index: index, false)
)
);
}
else
{
var itemCount = followings.isEmpty()
? followArticleIds.Count
: followArticleIds.Count + 1;
if (!this.widget.viewModel.followArticleHasMore)
{
itemCount = itemCount + 1;
}
content = new SmartRefresher(
controller: this._refreshController,
enablePullDown: true,
enablePullUp: this.widget.viewModel.followArticleHasMore,
onRefresh: up => this._onRefresh(up: up, false),
child: ListView.builder(
physics: new AlwaysScrollableScrollPhysics(),
itemCount: itemCount,
itemBuilder: (cxt, index) => this._buildFollowArticleCard(context: cxt, index: index)
)
);
}
return(new Container(
color: CColors.Background,
child: new CustomScrollbar(child: content)
));
}
