/* ------------------------- CONTROL FUNCTIONS ------------------------- */
/* Functions are primarily modified control functions for a cross threaded application */
/*
* General purpose function for setting the text of a control in a threadsafe manner
* @param text: The desired text for the control
* @param control: The control being modified
*/
private void setControlText(String text, Control control)
{
if (control.InvokeRequired)
{
SetLabelTextDelegate d = new SetLabelTextDelegate(setControlText);
this.Invoke(d, new object[] { text, control });
}
else
{
control.Text = text;
}
}
//MAIN CODE TO LOAD HANDBAGS
private void WorkerMine_DoWork()
{
//Set Progress Text to "0/0"
SetLabelTextDelegate setLabelTextDelegate = new SetLabelTextDelegate(SetLabelText);
String progressTextString = "0/0";
this.Invoke(setLabelTextDelegate, new object[] { "progressText", progressTextString });
productsLoaded = false;
//Create a box with 4 default spots + more depending on how many bags are present
WebBrowser webBrowser = new WebBrowser();
int defaultWidth = 550;
int defaultHeight = 550;
Panel leftPanel = new Panel
{
Name = "leftPanel",
Location = new Point(30, 30),
Size = new Size(defaultWidth, defaultHeight),
AutoScroll = false,
BackColor = Color.Gray,
};
leftPanel.VerticalScroll.Visible = false;
//Click Event
this.Click += clickEvent;
leftPanel.Click += clickEvent;
AddPanelDelegate addPanel = new AddPanelDelegate(AddPanel);
this.Invoke(addPanel, new object[] { leftPanel });
//Variables for item boxes
int xCoord = 0;
int yCoord = 0;
//Check if the user wants to get stock data (slow as it uses a web browser)
bool getStock = false;
if (stockCheckBox.Checked)
{
getStock = true;
}
//Load an instance of Internet Explorer 11 for Web Browsing
if (getStock)
{
webBrowser.ScriptErrorsSuppressed = true;
if (!WBEmulator.IsBrowserEmulationSet())
{
WBEmulator.SetBrowserEmulationVersion();
}
//Web Browser Event
webBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(JavaScriptLoaded);
}
//Using the HTML Agility NuGet
HtmlAgilityPack.HtmlWeb htmlWeb = new HtmlWeb();
HtmlAgilityPack.HtmlDocument webPage = new HtmlAgilityPack.HtmlDocument();
HtmlAgilityPack.HtmlDocument webPageDesc = new HtmlAgilityPack.HtmlDocument();
webPage = htmlWeb.Load("https://uk.louisvuitton.com/eng-gb/women/handbags/_/N-2keomb.html");
//Collect HTML Data
HtmlAgilityPack.HtmlNodeCollection productNames = webPage.DocumentNode.SelectNodes("//div[@class='productName toMinimize']");
HtmlAgilityPack.HtmlNodeCollection productPrices = webPage.DocumentNode.SelectNodes("//div[@class='from-price']//span");
HtmlAgilityPack.HtmlNodeCollection productPageLinks = webPage.DocumentNode.SelectNodes("//a[@class='product-item productItem tagClick tagClick']");
//HtmlAgilityPack.HtmlNodeCollection productPageLinks = webPage.DocumentNode.SelectNodes("//a[@class='product-item tagClick tagClick']");
HtmlAgilityPack.HtmlNodeCollection productImageLinks = webPage.DocumentNode.SelectNodes("//a[@class='product-item productItem tagClick tagClick']//div[@class='imageWrapper']//img");
//Progress Bar
InitialseProgressBar(productNames.Count);
//Collect JavaScript Data + Add Item to Form
handbags.Clear();
for (int i = 0; i < productNames.Count; i++)
{
//Create Handbag Object
handbags.Add(new Handbag());
//Product Name
handbags.ElementAt(i).ProductName = productNames.ElementAt(i).InnerText;
//Product Price
handbags.ElementAt(i).ProductPrice = productPrices.ElementAt(i).Attributes["data-htmlContent"].Value;
//Product Code
handbags.ElementAt(i).ProductCode = productPageLinks.ElementAt(i).Attributes["data-sku"].Value;
//Image Link
handbags.ElementAt(i).ProductImage = productImageLinks.ElementAt(i).Attributes["data-src"].Value;
handbags.ElementAt(i).ProductImage = handbags.ElementAt(i).ProductImage.Replace("{IMG_WIDTH}", "360");
handbags.ElementAt(i).ProductImage = handbags.ElementAt(i).ProductImage.Replace("{IMG_HEIGHT}", "360");
handbags.ElementAt(i).ProductImage = handbags.ElementAt(i).ProductImage.Replace(" ", "%20");
//Page Link
handbags.ElementAt(i).PageLink = "https://uk.louisvuitton.com/" + productPageLinks.ElementAt(i).Attributes["href"].Value;
//Navigate Browser for JavaScript (The only way to get stock messages is using JavaScript, so the program opens an internet browser)
if (getStock)
{
LoadWebPageWithBrowser(webPageDesc, handbags.ElementAt(i).PageLink, webBrowser);
}
else
{
webPageDesc = htmlWeb.Load(handbags.ElementAt(i).PageLink);
}
HtmlAgilityPack.HtmlNode description = webPageDesc.DocumentNode.SelectSingleNode("//div[@class='productDescription description-push-text onlyML ppTextDescription ']");
if (description != null)
{
handbags.ElementAt(i).ProductDescription = description.InnerText;
handbags.ElementAt(i).ProductDescription = handbags.ElementAt(i).ProductDescription.Remove(0, 15);
}
//Handbag Availability
if (getStock)
{
HtmlAgilityPack.HtmlNode availability = webPageDesc.DocumentNode.SelectSingleNode("//div[@id='notInStock']");
if (availability != null)
{
if (availability.Attributes["class"].Value == "getIndexClass")
{
handbags.ElementAt(i).Availability = "Currently out of stock online";
}
else
{
handbags.ElementAt(i).Availability = "In Stock";
}
}
}
//Add Item to Form
int rowNumber = Convert.ToInt32(Math.Floor(Convert.ToDouble(i) / 2));
//Get X & Y Coordinates
yCoord = yMargin + rowNumber * boxSize + yMargin * rowNumber;
if (i % 2 == 0)
{
xCoord = xMargin;
}
else
{
xCoord = columnDistance;
}
//Add Box To Panel
UpdatePanelDelegate updatePanelDelegate = new UpdatePanelDelegate(UpdatePanel);
this.Invoke(updatePanelDelegate, new object[] { "leftPanel", handbags.ElementAt(i), xCoord, yCoord, boxSize, i });
//Progress Text
progressTextString = (i + 1) + "/" + productNames.Count;
VoidDelegate progressStep = new VoidDelegate(ProgressStep);
this.Invoke(setLabelTextDelegate, new object[] { "progressText", progressTextString });
this.Invoke(progressStep);
}
//DATA COLLECTED!
VoidDelegate endProgressBar = new VoidDelegate(EndProgressBar);
this.Invoke(endProgressBar);
webBrowser.Dispose();
webSiteLoaded = false;
midwork = false;
productsLoaded = true;
}
