Work on GitHub (branch list, repo download, basic form)

CodeStatistics/App.config

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+  <system.net>
+    <settings>
+      <httpWebRequest useUnsafeHeaderParsing="true" />
+    </settings>
+  </system.net>
+</configuration>

CodeStatistics/CodeStatistics.csproj

@@ -53,6 +53,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="WindowsBase" />
   </ItemGroup>
@@ -154,6 +155,9 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.

CodeStatistics/Forms/GitHubForm.Designer.cs

@@ -0,0 +1,140 @@
+namespace CodeStatistics.Forms {
+    partial class GitHubForm {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing) {
+            if (disposing && (components != null)) {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent() {
+            this.textBoxRepository = new System.Windows.Forms.TextBox();
+            this.labelRepository = new System.Windows.Forms.Label();
+            this.btnCancel = new System.Windows.Forms.Button();
+            this.btnListBranches = new System.Windows.Forms.Button();
+            this.labelBranch = new System.Windows.Forms.Label();
+            this.listBranches = new System.Windows.Forms.ComboBox();
+            this.btnDownload = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // textBoxRepository
+            // 
+            this.textBoxRepository.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.textBoxRepository.Location = new System.Drawing.Point(15, 25);
+            this.textBoxRepository.Name = "textBoxRepository";
+            this.textBoxRepository.Size = new System.Drawing.Size(298, 20);
+            this.textBoxRepository.TabIndex = 0;
+            // 
+            // labelRepository
+            // 
+            this.labelRepository.AutoSize = true;
+            this.labelRepository.BackColor = System.Drawing.Color.Transparent;
+            this.labelRepository.Location = new System.Drawing.Point(12, 9);
+            this.labelRepository.Name = "labelRepository";
+            this.labelRepository.Size = new System.Drawing.Size(91, 13);
+            this.labelRepository.TabIndex = 1;
+            this.labelRepository.Text = "Repository Name:";
+            // 
+            // btnCancel
+            // 
+            this.btnCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnCancel.Location = new System.Drawing.Point(238, 113);
+            this.btnCancel.Name = "btnCancel";
+            this.btnCancel.Size = new System.Drawing.Size(75, 23);
+            this.btnCancel.TabIndex = 2;
+            this.btnCancel.Text = "Cancel";
+            this.btnCancel.UseVisualStyleBackColor = true;
+            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
+            // 
+            // btnListBranches
+            // 
+            this.btnListBranches.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnListBranches.Location = new System.Drawing.Point(139, 113);
+            this.btnListBranches.Name = "btnListBranches";
+            this.btnListBranches.Size = new System.Drawing.Size(93, 23);
+            this.btnListBranches.TabIndex = 3;
+            this.btnListBranches.Text = "List Branches";
+            this.btnListBranches.UseVisualStyleBackColor = true;
+            this.btnListBranches.Click += new System.EventHandler(this.btnListBranches_Click);
+            // 
+            // labelBranch
+            // 
+            this.labelBranch.AutoSize = true;
+            this.labelBranch.BackColor = System.Drawing.Color.Transparent;
+            this.labelBranch.Location = new System.Drawing.Point(12, 57);
+            this.labelBranch.Name = "labelBranch";
+            this.labelBranch.Size = new System.Drawing.Size(44, 13);
+            this.labelBranch.TabIndex = 4;
+            this.labelBranch.Text = "Branch:";
+            // 
+            // listBranches
+            // 
+            this.listBranches.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.listBranches.FormattingEnabled = true;
+            this.listBranches.Location = new System.Drawing.Point(15, 73);
+            this.listBranches.Name = "listBranches";
+            this.listBranches.Size = new System.Drawing.Size(298, 21);
+            this.listBranches.TabIndex = 6;
+            // 
+            // btnDownload
+            // 
+            this.btnDownload.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnDownload.Location = new System.Drawing.Point(58, 113);
+            this.btnDownload.Name = "btnDownload";
+            this.btnDownload.Size = new System.Drawing.Size(75, 23);
+            this.btnDownload.TabIndex = 7;
+            this.btnDownload.Text = "Download";
+            this.btnDownload.UseVisualStyleBackColor = true;
+            this.btnDownload.Click += new System.EventHandler(this.btnDownload_Click);
+            // 
+            // GitHubForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.Color.White;
+            this.ClientSize = new System.Drawing.Size(325, 148);
+            this.Controls.Add(this.btnDownload);
+            this.Controls.Add(this.listBranches);
+            this.Controls.Add(this.labelBranch);
+            this.Controls.Add(this.btnListBranches);
+            this.Controls.Add(this.btnCancel);
+            this.Controls.Add(this.labelRepository);
+            this.Controls.Add(this.textBoxRepository);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
+            this.MaximizeBox = false;
+            this.Name = "GitHubForm";
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
+            this.Load += new System.EventHandler(this.OnLoad);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox textBoxRepository;
+        private System.Windows.Forms.Label labelRepository;
+        private System.Windows.Forms.Button btnCancel;
+        private System.Windows.Forms.Button btnListBranches;
+        private System.Windows.Forms.Label labelBranch;
+        private System.Windows.Forms.ComboBox listBranches;
+        private System.Windows.Forms.Button btnDownload;
+    }
+}

CodeStatistics/Forms/GitHubForm.cs

@@ -0,0 +1,45 @@
+using CodeStatistics.Input.Methods;
+using System;
+using System.Windows.Forms;
+
+namespace CodeStatistics.Forms{
+    public partial class GitHubForm : Form{
+        public GitHub GitHub { get; private set; }
+
+        public GitHubForm(){
+            InitializeComponent();
+        }
+
+        private void OnLoad(object sender, EventArgs e){
+            listBranches.Items.Add("master");
+            listBranches.SelectedIndex = 0;
+        }
+
+        private void btnDownload_Click(object sender, EventArgs e){
+            string[] data = textBoxRepository.Text.Split('/');
+            GitHub = new GitHub(data[0],data[1]);
+            GitHub.Branch = (string)listBranches.SelectedItem;
+
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+
+        private void btnListBranches_Click(object sender, EventArgs e){
+            string[] data = textBoxRepository.Text.Split('/');
+            GitHub github = new GitHub(data[0],data[1]);
+
+            github.RetrieveBranchList(branches => this.InvokeOnUIThread(() => {
+                listBranches.Items.Clear();
+
+                foreach(string branch in branches){
+                    listBranches.Items.Add(branch);
+                }
+            }));
+        }
+
+        private void btnCancel_Click(object sender, EventArgs e){
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

CodeStatistics/Forms/MainForm.Designer.cs

@@ -60,6 +60,7 @@
             this.btnProjectGitHub.Size = new System.Drawing.Size(312, 38);
             this.btnProjectGitHub.TabIndex = 1;
             this.btnProjectGitHub.UseVisualStyleBackColor = false;
+            this.btnProjectGitHub.Click += new System.EventHandler(this.btnProjectGitHub_Click);
             // 
             // btnViewSourceCode
             // 

CodeStatistics/Forms/MainForm.cs

@@ -56,6 +56,16 @@ namespace CodeStatistics.Forms{
             }
         }
 
+        private void btnProjectGitHub_Click(object sender, EventArgs e){
+            GitHubForm form = new GitHubForm();
+            
+            if (form.ShowDialog() == DialogResult.OK){
+                InputMethod = form.GitHub;
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+        }
+
         private void btnViewSourceCode_Click(object sender, EventArgs e){
             Process.Start("https://github.com/chylex/Code-Statistics");
         }

CodeStatistics/Input/Methods/GitHub.cs

@@ -1,18 +1,28 @@
 using System;
+using System.Linq;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Net;
+using System.Net.NetworkInformation;
+using System.Web.Script.Serialization;
+using CodeStatistics.Forms;
 
 namespace CodeStatistics.Input.Methods{
-    public class GitHub : IDisposable{
+    public class GitHub : IInputMethod, IDisposable{
         public enum DownloadStatus{
             NoInternet, NoConnection, Started
         }
 
+        public delegate void BranchListRetrieved(IEnumerable<string> branches);
+
         private readonly string target;
-        private WebClient downloader;
+        private WebClient dlBranches, dlRepo;
+
+        public string Branch = "master";
 
         public string RepositoryName { get { return target; } }
-        public string ZipUrl { get { return "https://github.com/"+target+"/zipball/master"; } }
+        public string BranchesUrl { get { return "https://api.github.com/repos/"+target+"/branches"; } }
+        public string ZipUrl { get { return "https://github.com/"+target+"/zipball/"+Branch; } }
 
         public event DownloadProgressChangedEventHandler DownloadProgressChanged;
         public event AsyncCompletedEventHandler DownloadFinished;
@@ -21,18 +31,53 @@ namespace CodeStatistics.Input.Methods{
             this.target = username+"/"+repository;
         }
 
-        public DownloadStatus DownloadRepositoryZip(string targetFile){
+        public DownloadStatus RetrieveBranchList(BranchListRetrieved onRetrieved){
-            if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()){
+            if (dlBranches != null)Reset();
+
+            if (!NetworkInterface.GetIsNetworkAvailable()){
                 return DownloadStatus.NoInternet;
             }
 
-            downloader = new WebClient();
+            dlBranches = CreateWebClient();
 
-            if (DownloadProgressChanged != null)downloader.DownloadProgressChanged += DownloadProgressChanged;
+            dlBranches.DownloadStringCompleted += (sender, args) => {
-            if (DownloadFinished != null)downloader.DownloadFileCompleted += DownloadFinished;
+                if (args.Cancelled || args.Error != null){
+                    onRetrieved(null);
+                    return;
+                }
+                
+                List<string> branches = new List<string>(2);
+
+                foreach(object entry in (object[])new JavaScriptSerializer().DeserializeObject(args.Result)){
+                    branches.Add((string)((Dictionary<string,object>)entry)["name"]);
+                }
+
+                if (branches.Remove("master"))onRetrieved(Enumerable.Repeat("master",1).Concat(branches));
+                else onRetrieved(branches);
+            };
 
             try{
-                downloader.DownloadFileAsync(new Uri(ZipUrl),targetFile);
+                dlBranches.DownloadStringAsync(new Uri(BranchesUrl));
+                return DownloadStatus.Started;
+            }catch(WebException){
+                return DownloadStatus.NoConnection;
+            }
+        }
+
+        public DownloadStatus DownloadRepositoryZip(string targetFile){
+            if (dlRepo != null)Reset();
+
+            if (!NetworkInterface.GetIsNetworkAvailable()){
+                return DownloadStatus.NoInternet;
+            }
+
+            dlRepo = CreateWebClient();
+
+            if (DownloadProgressChanged != null)dlRepo.DownloadProgressChanged += DownloadProgressChanged;
+            if (DownloadFinished != null)dlRepo.DownloadFileCompleted += DownloadFinished;
+
+            try{
+                dlRepo.DownloadFileAsync(new Uri(ZipUrl),targetFile);
                 return DownloadStatus.Started;
             }catch(WebException){
                 return DownloadStatus.NoConnection;
@@ -40,11 +85,55 @@ namespace CodeStatistics.Input.Methods{
         }
 
         public void Cancel(){
-            if (downloader != null)downloader.CancelAsync();
+            if (dlBranches != null)dlBranches.CancelAsync();
+            if (dlRepo != null)dlRepo.CancelAsync();
         }
 
         public void Dispose(){
-            if (downloader != null)downloader.Dispose();
+            if (dlBranches != null)dlBranches.Dispose();
+            if (dlRepo != null)dlRepo.Dispose();
+        }
+
+        private void Reset(){
+            Cancel();
+            Dispose();
+        }
+
+        public void BeginProcess(ProjectLoadForm.UpdateCallbacks callbacks){ // TODO
+            DownloadProgressChanged += (sender, args) => {
+                callbacks.UpdateProgress(args.ProgressPercentage);
+                callbacks.UpdateDataLabel(args.TotalBytesToReceive/1024 == 0 ? (args.BytesReceived/1024)+" kB" : (args.BytesReceived/1024)+" / "+(args.TotalBytesToReceive/1024)+" kB");
+            };
+
+            DownloadFinished += (sender, args) => {
+                callbacks.UpdateInfoLabel("Extracting repository...");
+                // TODO extraction
+            };
+
+            switch(DownloadRepositoryZip("tmp.zip")){
+                case DownloadStatus.Started:
+                    callbacks.UpdateInfoLabel("Downloading repository...");
+                    break;
+
+                case DownloadStatus.NoInternet:
+                    callbacks.UpdateInfoLabel("No internet connection.");
+                    break;
+
+                case DownloadStatus.NoConnection:
+                    callbacks.UpdateInfoLabel("Could not establish connection with GitHub.");
+                    break;
+            }
+        }
+
+        public void CancelProcess(Action onCancelFinish){
+            Reset();
+            onCancelFinish();
+        }
+
+        private static WebClient CreateWebClient(){
+            WebClient client = new WebClient();
+            client.Headers.Add("User-Agent","CodeStatistics");
+            return client;
         }
     }
 }